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Theorem plypf1 23968
Description: Write the set of complex polynomials in a subring in terms of the abstract polynomial construction. (Contributed by Mario Carneiro, 3-Jul-2015.) (Proof shortened by AV, 29-Sep-2019.)
Hypotheses
Ref Expression
plypf1.r  |-  R  =  (flds  S )
plypf1.p  |-  P  =  (Poly1 `  R )
plypf1.a  |-  A  =  ( Base `  P
)
plypf1.e  |-  E  =  (eval1 ` fld )
Assertion
Ref Expression
plypf1  |-  ( S  e.  (SubRing ` fld )  ->  (Poly `  S )  =  ( E " A ) )

Proof of Theorem plypf1
Dummy variables  f 
a  k  n  x  z are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 elply 23951 . . . . 5  |-  ( f  e.  (Poly `  S
)  <->  ( S  C_  CC  /\  E. n  e. 
NN0  E. a  e.  ( ( S  u.  {
0 } )  ^m  NN0 ) f  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) ) ) )
21simprbi 480 . . . 4  |-  ( f  e.  (Poly `  S
)  ->  E. n  e.  NN0  E. a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) f  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) ) )
3 eqid 2622 . . . . . . . . 9  |-  (fld  ^s  CC )  =  (fld 
^s 
CC )
4 cnfldbas 19750 . . . . . . . . 9  |-  CC  =  ( Base ` fld )
5 eqid 2622 . . . . . . . . 9  |-  ( 0g
`  (fld 
^s 
CC ) )  =  ( 0g `  (fld  ^s  CC ) )
6 cnex 10017 . . . . . . . . . 10  |-  CC  e.  _V
76a1i 11 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  ->  CC  e.  _V )
8 fzfid 12772 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( 0 ... n
)  e.  Fin )
9 cnring 19768 . . . . . . . . . 10  |-fld  e.  Ring
10 ringcmn 18581 . . . . . . . . . 10  |-  (fld  e.  Ring  ->fld  e. CMnd )
119, 10mp1i 13 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  ->fld  e. CMnd )
124subrgss 18781 . . . . . . . . . . . . 13  |-  ( S  e.  (SubRing ` fld )  ->  S  C_  CC )
1312ad2antrr 762 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  S  C_  CC )
14 elmapi 7879 . . . . . . . . . . . . . . 15  |-  ( a  e.  ( ( S  u.  { 0 } )  ^m  NN0 )  ->  a : NN0 --> ( S  u.  { 0 } ) )
1514ad2antll 765 . . . . . . . . . . . . . 14  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
a : NN0 --> ( S  u.  { 0 } ) )
16 subrgsubg 18786 . . . . . . . . . . . . . . . . . . 19  |-  ( S  e.  (SubRing ` fld )  ->  S  e.  (SubGrp ` fld ) )
17 cnfld0 19770 . . . . . . . . . . . . . . . . . . . 20  |-  0  =  ( 0g ` fld )
1817subg0cl 17602 . . . . . . . . . . . . . . . . . . 19  |-  ( S  e.  (SubGrp ` fld )  ->  0  e.  S )
1916, 18syl 17 . . . . . . . . . . . . . . . . . 18  |-  ( S  e.  (SubRing ` fld )  ->  0  e.  S )
2019adantr 481 . . . . . . . . . . . . . . . . 17  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
0  e.  S )
2120snssd 4340 . . . . . . . . . . . . . . . 16  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  ->  { 0 }  C_  S )
22 ssequn2 3786 . . . . . . . . . . . . . . . 16  |-  ( { 0 }  C_  S  <->  ( S  u.  { 0 } )  =  S )
2321, 22sylib 208 . . . . . . . . . . . . . . 15  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( S  u.  {
0 } )  =  S )
2423feq3d 6032 . . . . . . . . . . . . . 14  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( a : NN0 --> ( S  u.  { 0 } )  <->  a : NN0
--> S ) )
2515, 24mpbid 222 . . . . . . . . . . . . 13  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
a : NN0 --> S )
26 elfznn0 12433 . . . . . . . . . . . . 13  |-  ( k  e.  ( 0 ... n )  ->  k  e.  NN0 )
27 ffvelrn 6357 . . . . . . . . . . . . 13  |-  ( ( a : NN0 --> S  /\  k  e.  NN0 )  -> 
( a `  k
)  e.  S )
2825, 26, 27syl2an 494 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( a `  k )  e.  S
)
2913, 28sseldd 3604 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( a `  k )  e.  CC )
3029adantrl 752 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  ( z  e.  CC  /\  k  e.  ( 0 ... n ) ) )  ->  ( a `  k )  e.  CC )
31 simprl 794 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  ( z  e.  CC  /\  k  e.  ( 0 ... n ) ) )  ->  z  e.  CC )
3226ad2antll 765 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  ( z  e.  CC  /\  k  e.  ( 0 ... n ) ) )  ->  k  e.  NN0 )
33 expcl 12878 . . . . . . . . . . 11  |-  ( ( z  e.  CC  /\  k  e.  NN0 )  -> 
( z ^ k
)  e.  CC )
3431, 32, 33syl2anc 693 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  ( z  e.  CC  /\  k  e.  ( 0 ... n ) ) )  ->  ( z ^ k )  e.  CC )
3530, 34mulcld 10060 . . . . . . . . 9  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  ( z  e.  CC  /\  k  e.  ( 0 ... n ) ) )  ->  ( (
a `  k )  x.  ( z ^ k
) )  e.  CC )
36 eqid 2622 . . . . . . . . . 10  |-  ( k  e.  ( 0 ... n )  |->  ( z  e.  CC  |->  ( ( a `  k )  x.  ( z ^
k ) ) ) )  =  ( k  e.  ( 0 ... n )  |->  ( z  e.  CC  |->  ( ( a `  k )  x.  ( z ^
k ) ) ) )
376mptex 6486 . . . . . . . . . . 11  |-  ( z  e.  CC  |->  ( ( a `  k )  x.  ( z ^
k ) ) )  e.  _V
3837a1i 11 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( ( a `
 k )  x.  ( z ^ k
) ) )  e. 
_V )
39 fvex 6201 . . . . . . . . . . 11  |-  ( 0g
`  (fld 
^s 
CC ) )  e. 
_V
4039a1i 11 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( 0g `  (fld  ^s  CC ) )  e.  _V )
4136, 8, 38, 40fsuppmptdm 8286 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) finSupp  ( 0g `  (fld 
^s 
CC ) ) )
423, 4, 5, 7, 8, 11, 35, 41pwsgsum 18378 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( (fld 
^s 
CC )  gsumg  ( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) )  =  ( z  e.  CC  |->  (fld 
gsumg  ( k  e.  ( 0 ... n ) 
|->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) ) )
43 fzfid 12772 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  z  e.  CC )  ->  ( 0 ... n
)  e.  Fin )
4435anassrs 680 . . . . . . . . . 10  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  z  e.  CC )  /\  k  e.  (
0 ... n ) )  ->  ( ( a `
 k )  x.  ( z ^ k
) )  e.  CC )
4543, 44gsumfsum 19813 . . . . . . . . 9  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  z  e.  CC )  ->  (fld 
gsumg  ( k  e.  ( 0 ... n ) 
|->  ( ( a `  k )  x.  (
z ^ k ) ) ) )  = 
sum_ k  e.  ( 0 ... n ) ( ( a `  k )  x.  (
z ^ k ) ) )
4645mpteq2dva 4744 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( z  e.  CC  |->  (fld  gsumg  (
k  e.  ( 0 ... n )  |->  ( ( a `  k
)  x.  ( z ^ k ) ) ) ) )  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) ) )
4742, 46eqtrd 2656 . . . . . . 7  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( (fld 
^s 
CC )  gsumg  ( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) )  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k )  x.  (
z ^ k ) ) ) )
483pwsring 18615 . . . . . . . . . 10  |-  ( (fld  e. 
Ring  /\  CC  e.  _V )  ->  (fld 
^s 
CC )  e.  Ring )
499, 6, 48mp2an 708 . . . . . . . . 9  |-  (fld  ^s  CC )  e.  Ring
50 ringcmn 18581 . . . . . . . . 9  |-  ( (fld  ^s  CC )  e.  Ring  ->  (fld  ^s  CC )  e. CMnd )
5149, 50mp1i 13 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
(fld  ^s  CC )  e. CMnd )
52 cncrng 19767 . . . . . . . . . . 11  |-fld  e.  CRing
53 plypf1.e . . . . . . . . . . . 12  |-  E  =  (eval1 ` fld )
54 eqid 2622 . . . . . . . . . . . 12  |-  (Poly1 ` fld )  =  (Poly1 ` fld )
5553, 54, 3, 4evl1rhm 19696 . . . . . . . . . . 11  |-  (fld  e.  CRing  ->  E  e.  ( (Poly1 ` fld ) RingHom  (fld  ^s  CC ) ) )
5652, 55ax-mp 5 . . . . . . . . . 10  |-  E  e.  ( (Poly1 ` fld ) RingHom  (fld 
^s 
CC ) )
57 plypf1.r . . . . . . . . . . . 12  |-  R  =  (flds  S )
58 plypf1.p . . . . . . . . . . . 12  |-  P  =  (Poly1 `  R )
59 plypf1.a . . . . . . . . . . . 12  |-  A  =  ( Base `  P
)
6054, 57, 58, 59subrgply1 19603 . . . . . . . . . . 11  |-  ( S  e.  (SubRing ` fld )  ->  A  e.  (SubRing `  (Poly1 ` fld ) ) )
6160adantr 481 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  ->  A  e.  (SubRing `  (Poly1 ` fld )
) )
62 rhmima 18811 . . . . . . . . . 10  |-  ( ( E  e.  ( (Poly1 ` fld ) RingHom 
(fld  ^s  CC ) )  /\  A  e.  (SubRing `  (Poly1 ` fld ) ) )  -> 
( E " A
)  e.  (SubRing `  (fld  ^s  CC ) ) )
6356, 61, 62sylancr 695 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( E " A
)  e.  (SubRing `  (fld  ^s  CC ) ) )
64 subrgsubg 18786 . . . . . . . . 9  |-  ( ( E " A )  e.  (SubRing `  (fld  ^s  CC ) )  ->  ( E " A )  e.  (SubGrp `  (fld 
^s 
CC ) ) )
65 subgsubm 17616 . . . . . . . . 9  |-  ( ( E " A )  e.  (SubGrp `  (fld  ^s  CC ) )  ->  ( E " A )  e.  (SubMnd `  (fld 
^s 
CC ) ) )
6663, 64, 653syl 18 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( E " A
)  e.  (SubMnd `  (fld  ^s  CC ) ) )
67 eqid 2622 . . . . . . . . . . . 12  |-  ( Base `  (fld 
^s 
CC ) )  =  ( Base `  (fld  ^s  CC ) )
689a1i 11 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->fld 
e.  Ring )
696a1i 11 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  CC  e.  _V )
70 fconst6g 6094 . . . . . . . . . . . . . 14  |-  ( ( a `  k )  e.  CC  ->  ( CC  X.  { ( a `
 k ) } ) : CC --> CC )
7129, 70syl 17 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( CC  X.  { ( a `  k ) } ) : CC --> CC )
723, 4, 67pwselbasb 16148 . . . . . . . . . . . . . 14  |-  ( (fld  e. 
Ring  /\  CC  e.  _V )  ->  ( ( CC 
X.  { ( a `
 k ) } )  e.  ( Base `  (fld 
^s 
CC ) )  <->  ( CC  X.  { ( a `  k ) } ) : CC --> CC ) )
739, 6, 72mp2an 708 . . . . . . . . . . . . 13  |-  ( ( CC  X.  { ( a `  k ) } )  e.  (
Base `  (fld  ^s  CC )
)  <->  ( CC  X.  { ( a `  k ) } ) : CC --> CC )
7471, 73sylibr 224 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( CC  X.  { ( a `  k ) } )  e.  ( Base `  (fld  ^s  CC ) ) )
7534anass1rs 849 . . . . . . . . . . . . . 14  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( z ^
k )  e.  CC )
76 eqid 2622 . . . . . . . . . . . . . 14  |-  ( z  e.  CC  |->  ( z ^ k ) )  =  ( z  e.  CC  |->  ( z ^
k ) )
7775, 76fmptd 6385 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( z ^
k ) ) : CC --> CC )
783, 4, 67pwselbasb 16148 . . . . . . . . . . . . . 14  |-  ( (fld  e. 
Ring  /\  CC  e.  _V )  ->  ( ( z  e.  CC  |->  ( z ^ k ) )  e.  ( Base `  (fld  ^s  CC ) )  <->  ( z  e.  CC  |->  ( z ^
k ) ) : CC --> CC ) )
799, 6, 78mp2an 708 . . . . . . . . . . . . 13  |-  ( ( z  e.  CC  |->  ( z ^ k ) )  e.  ( Base `  (fld 
^s 
CC ) )  <->  ( z  e.  CC  |->  ( z ^
k ) ) : CC --> CC )
8077, 79sylibr 224 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( z ^
k ) )  e.  ( Base `  (fld  ^s  CC ) ) )
81 cnfldmul 19752 . . . . . . . . . . . 12  |-  x.  =  ( .r ` fld )
82 eqid 2622 . . . . . . . . . . . 12  |-  ( .r
`  (fld 
^s 
CC ) )  =  ( .r `  (fld  ^s  CC ) )
833, 67, 68, 69, 74, 80, 81, 82pwsmulrval 16151 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( ( CC 
X.  { ( a `
 k ) } ) ( .r `  (fld  ^s  CC ) ) ( z  e.  CC  |->  ( z ^ k ) ) )  =  ( ( CC  X.  { ( a `  k ) } )  oF  x.  ( z  e.  CC  |->  ( z ^
k ) ) ) )
8429adantr 481 . . . . . . . . . . . 12  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( a `  k )  e.  CC )
85 fconstmpt 5163 . . . . . . . . . . . . 13  |-  ( CC 
X.  { ( a `
 k ) } )  =  ( z  e.  CC  |->  ( a `
 k ) )
8685a1i 11 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( CC  X.  { ( a `  k ) } )  =  ( z  e.  CC  |->  ( a `  k ) ) )
87 eqidd 2623 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( z ^
k ) )  =  ( z  e.  CC  |->  ( z ^ k
) ) )
8869, 84, 75, 86, 87offval2 6914 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( ( CC 
X.  { ( a `
 k ) } )  oF  x.  ( z  e.  CC  |->  ( z ^ k
) ) )  =  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) )
8983, 88eqtrd 2656 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( ( CC 
X.  { ( a `
 k ) } ) ( .r `  (fld  ^s  CC ) ) ( z  e.  CC  |->  ( z ^ k ) ) )  =  ( z  e.  CC  |->  ( ( a `  k )  x.  ( z ^
k ) ) ) )
9063adantr 481 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E " A )  e.  (SubRing `  (fld 
^s 
CC ) ) )
91 eqid 2622 . . . . . . . . . . . . . 14  |-  (algSc `  (Poly1 ` fld ) )  =  (algSc `  (Poly1 ` fld ) )
9253, 54, 4, 91evl1sca 19698 . . . . . . . . . . . . 13  |-  ( (fld  e. 
CRing  /\  ( a `  k )  e.  CC )  ->  ( E `  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
) )  =  ( CC  X.  { ( a `  k ) } ) )
9352, 29, 92sylancr 695 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
) )  =  ( CC  X.  { ( a `  k ) } ) )
94 eqid 2622 . . . . . . . . . . . . . . . 16  |-  ( Base `  (Poly1 ` fld ) )  =  (
Base `  (Poly1 ` fld ) )
9594, 67rhmf 18726 . . . . . . . . . . . . . . 15  |-  ( E  e.  ( (Poly1 ` fld ) RingHom  (fld 
^s 
CC ) )  ->  E : ( Base `  (Poly1 ` fld )
) --> ( Base `  (fld  ^s  CC ) ) )
9656, 95ax-mp 5 . . . . . . . . . . . . . 14  |-  E :
( Base `  (Poly1 ` fld ) ) --> ( Base `  (fld 
^s 
CC ) )
97 ffn 6045 . . . . . . . . . . . . . 14  |-  ( E : ( Base `  (Poly1 ` fld )
) --> ( Base `  (fld  ^s  CC ) )  ->  E  Fn  ( Base `  (Poly1 ` fld ) ) )
9896, 97mp1i 13 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  E  Fn  ( Base `  (Poly1 ` fld ) ) )
9994subrgss 18781 . . . . . . . . . . . . . . 15  |-  ( A  e.  (SubRing `  (Poly1 ` fld )
)  ->  A  C_  ( Base `  (Poly1 ` fld ) ) )
10060, 99syl 17 . . . . . . . . . . . . . 14  |-  ( S  e.  (SubRing ` fld )  ->  A  C_  ( Base `  (Poly1 ` fld ) ) )
101100ad2antrr 762 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  A  C_  ( Base `  (Poly1 ` fld ) ) )
102 simpll 790 . . . . . . . . . . . . . . 15  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  S  e.  (SubRing ` fld ) )
10354, 91, 57, 58, 102, 59, 4, 29subrg1asclcl 19630 . . . . . . . . . . . . . 14  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
)  e.  A  <->  ( a `  k )  e.  S
) )
10428, 103mpbird 247 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
)  e.  A )
105 fnfvima 6496 . . . . . . . . . . . . 13  |-  ( ( E  Fn  ( Base `  (Poly1 ` fld ) )  /\  A  C_  ( Base `  (Poly1 ` fld )
)  /\  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
)  e.  A )  ->  ( E `  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
) )  e.  ( E " A ) )
10698, 101, 104, 105syl3anc 1326 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( (algSc `  (Poly1 ` fld ) ) `  (
a `  k )
) )  e.  ( E " A ) )
10793, 106eqeltrrd 2702 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( CC  X.  { ( a `  k ) } )  e.  ( E " A ) )
10867subrgss 18781 . . . . . . . . . . . . . . . . 17  |-  ( ( E " A )  e.  (SubRing `  (fld  ^s  CC ) )  ->  ( E " A )  C_  ( Base `  (fld 
^s 
CC ) ) )
10990, 108syl 17 . . . . . . . . . . . . . . . 16  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E " A )  C_  ( Base `  (fld 
^s 
CC ) ) )
11060ad2antrr 762 . . . . . . . . . . . . . . . . . . 19  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  A  e.  (SubRing `  (Poly1 ` fld ) ) )
111 eqid 2622 . . . . . . . . . . . . . . . . . . . 20  |-  (mulGrp `  (Poly1 ` fld ) )  =  (mulGrp `  (Poly1 ` fld ) )
112111subrgsubm 18793 . . . . . . . . . . . . . . . . . . 19  |-  ( A  e.  (SubRing `  (Poly1 ` fld )
)  ->  A  e.  (SubMnd `  (mulGrp `  (Poly1 ` fld )
) ) )
113110, 112syl 17 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  A  e.  (SubMnd `  (mulGrp `  (Poly1 ` fld ) ) ) )
11426adantl 482 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  k  e.  NN0 )
115 eqid 2622 . . . . . . . . . . . . . . . . . . 19  |-  (var1 ` fld )  =  (var1 ` fld )
116115, 102, 57, 58, 59subrgvr1cl 19632 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  (var1 ` fld )  e.  A )
117 eqid 2622 . . . . . . . . . . . . . . . . . . 19  |-  (.g `  (mulGrp `  (Poly1 ` fld ) ) )  =  (.g `  (mulGrp `  (Poly1 ` fld )
) )
118117submmulgcl 17585 . . . . . . . . . . . . . . . . . 18  |-  ( ( A  e.  (SubMnd `  (mulGrp `  (Poly1 ` fld ) ) )  /\  k  e.  NN0  /\  (var1 ` fld )  e.  A )  ->  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) )  e.  A
)
119113, 114, 116, 118syl3anc 1326 . . . . . . . . . . . . . . . . 17  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  A )
120 fnfvima 6496 . . . . . . . . . . . . . . . . 17  |-  ( ( E  Fn  ( Base `  (Poly1 ` fld ) )  /\  A  C_  ( Base `  (Poly1 ` fld )
)  /\  ( k
(.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) )  e.  A
)  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  e.  ( E " A ) )
12198, 101, 119, 120syl3anc 1326 . . . . . . . . . . . . . . . 16  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  e.  ( E " A ) )
122109, 121sseldd 3604 . . . . . . . . . . . . . . 15  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  e.  (
Base `  (fld  ^s  CC )
) )
1233, 4, 67, 68, 69, 122pwselbas 16149 . . . . . . . . . . . . . 14  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) : CC --> CC )
124123feqmptd 6249 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  =  ( z  e.  CC  |->  ( ( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z ) ) )
12552a1i 11 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->fld 
e.  CRing )
126 simpr 477 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  z  e.  CC )
12753, 115, 4, 54, 94, 125, 126evl1vard 19701 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( (var1 ` fld )  e.  ( Base `  (Poly1 ` fld ) )  /\  (
( E `  (var1 ` fld )
) `  z )  =  z ) )
128 eqid 2622 . . . . . . . . . . . . . . . . 17  |-  (.g `  (mulGrp ` fld ) )  =  (.g `  (mulGrp ` fld ) )
129114adantr 481 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  k  e.  NN0 )
13053, 54, 4, 94, 125, 126, 127, 117, 128, 129evl1expd 19709 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) )  e.  (
Base `  (Poly1 ` fld ) )  /\  (
( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z )  =  ( k (.g `  (mulGrp ` fld ) ) z ) ) )
131130simprd 479 . . . . . . . . . . . . . . 15  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( ( E `
 ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) `  z
)  =  ( k (.g `  (mulGrp ` fld ) ) z ) )
132 cnfldexp 19779 . . . . . . . . . . . . . . . 16  |-  ( ( z  e.  CC  /\  k  e.  NN0 )  -> 
( k (.g `  (mulGrp ` fld ) ) z )  =  ( z ^ k
) )
133126, 129, 132syl2anc 693 . . . . . . . . . . . . . . 15  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( k (.g `  (mulGrp ` fld ) ) z )  =  ( z ^
k ) )
134131, 133eqtrd 2656 . . . . . . . . . . . . . 14  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  /\  z  e.  CC )  ->  ( ( E `
 ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) `  z
)  =  ( z ^ k ) )
135134mpteq2dva 4744 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( ( E `
 ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) `  z
) )  =  ( z  e.  CC  |->  ( z ^ k ) ) )
136124, 135eqtrd 2656 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  =  ( z  e.  CC  |->  ( z ^ k ) ) )
137136, 121eqeltrrd 2702 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( z ^
k ) )  e.  ( E " A
) )
13882subrgmcl 18792 . . . . . . . . . . 11  |-  ( ( ( E " A
)  e.  (SubRing `  (fld  ^s  CC ) )  /\  ( CC 
X.  { ( a `
 k ) } )  e.  ( E
" A )  /\  ( z  e.  CC  |->  ( z ^ k
) )  e.  ( E " A ) )  ->  ( ( CC  X.  { ( a `
 k ) } ) ( .r `  (fld  ^s  CC ) ) ( z  e.  CC  |->  ( z ^ k ) ) )  e.  ( E
" A ) )
13990, 107, 137, 138syl3anc 1326 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( ( CC 
X.  { ( a `
 k ) } ) ( .r `  (fld  ^s  CC ) ) ( z  e.  CC  |->  ( z ^ k ) ) )  e.  ( E
" A ) )
14089, 139eqeltrrd 2702 . . . . . . . . 9  |-  ( ( ( S  e.  (SubRing ` fld )  /\  ( n  e. 
NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  /\  k  e.  ( 0 ... n ) )  ->  ( z  e.  CC  |->  ( ( a `
 k )  x.  ( z ^ k
) ) )  e.  ( E " A
) )
141140, 36fmptd 6385 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) : ( 0 ... n
) --> ( E " A ) )
14236, 8, 140, 40fsuppmptdm 8286 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) finSupp  ( 0g `  (fld 
^s 
CC ) ) )
1435, 51, 8, 66, 141, 142gsumsubmcl 18319 . . . . . . 7  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( (fld 
^s 
CC )  gsumg  ( k  e.  ( 0 ... n ) 
|->  ( z  e.  CC  |->  ( ( a `  k )  x.  (
z ^ k ) ) ) ) )  e.  ( E " A ) )
14447, 143eqeltrrd 2702 . . . . . 6  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) )  e.  ( E
" A ) )
145 eleq1 2689 . . . . . 6  |-  ( f  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k )  x.  (
z ^ k ) ) )  ->  (
f  e.  ( E
" A )  <->  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k )  x.  (
z ^ k ) ) )  e.  ( E " A ) ) )
146144, 145syl5ibrcom 237 . . . . 5  |-  ( ( S  e.  (SubRing ` fld )  /\  (
n  e.  NN0  /\  a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) ) )  -> 
( f  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) )  ->  f  e.  ( E " A ) ) )
147146rexlimdvva 3038 . . . 4  |-  ( S  e.  (SubRing ` fld )  ->  ( E. n  e.  NN0  E. a  e.  ( ( S  u.  { 0 } )  ^m  NN0 ) f  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... n ) ( ( a `  k
)  x.  ( z ^ k ) ) )  ->  f  e.  ( E " A ) ) )
1482, 147syl5 34 . . 3  |-  ( S  e.  (SubRing ` fld )  ->  ( f  e.  (Poly `  S
)  ->  f  e.  ( E " A ) ) )
149 ffun 6048 . . . . . 6  |-  ( E : ( Base `  (Poly1 ` fld )
) --> ( Base `  (fld  ^s  CC ) )  ->  Fun  E )
15096, 149ax-mp 5 . . . . 5  |-  Fun  E
151 fvelima 6248 . . . . 5  |-  ( ( Fun  E  /\  f  e.  ( E " A
) )  ->  E. a  e.  A  ( E `  a )  =  f )
152150, 151mpan 706 . . . 4  |-  ( f  e.  ( E " A )  ->  E. a  e.  A  ( E `  a )  =  f )
153100sselda 3603 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  a  e.  ( Base `  (Poly1 ` fld )
) )
154 eqid 2622 . . . . . . . . . . . 12  |-  ( .s
`  (Poly1 ` fld ) )  =  ( .s `  (Poly1 ` fld ) )
155 eqid 2622 . . . . . . . . . . . 12  |-  (coe1 `  a
)  =  (coe1 `  a
)
15654, 115, 94, 154, 111, 117, 155ply1coe 19666 . . . . . . . . . . 11  |-  ( (fld  e. 
Ring  /\  a  e.  (
Base `  (Poly1 ` fld ) ) )  -> 
a  =  ( (Poly1 ` fld ) 
gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) ) )
1579, 153, 156sylancr 695 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  a  =  ( (Poly1 ` fld )  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) ) )
158157fveq2d 6195 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E `  a )  =  ( E `  ( (Poly1 ` fld )  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) ) ) )
159 eqid 2622 . . . . . . . . . 10  |-  ( 0g
`  (Poly1 ` fld ) )  =  ( 0g `  (Poly1 ` fld ) )
16054ply1ring 19618 . . . . . . . . . . . 12  |-  (fld  e.  Ring  -> 
(Poly1 `
fld )  e.  Ring )
1619, 160ax-mp 5 . . . . . . . . . . 11  |-  (Poly1 ` fld )  e.  Ring
162 ringcmn 18581 . . . . . . . . . . 11  |-  ( (Poly1 ` fld )  e.  Ring  ->  (Poly1 ` fld )  e. CMnd )
163161, 162mp1i 13 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (Poly1 ` fld )  e. CMnd )
164 ringmnd 18556 . . . . . . . . . . 11  |-  ( (fld  ^s  CC )  e.  Ring  ->  (fld  ^s  CC )  e.  Mnd )
16549, 164mp1i 13 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (fld  ^s  CC )  e.  Mnd )
166 nn0ex 11298 . . . . . . . . . . 11  |-  NN0  e.  _V
167166a1i 11 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  NN0  e.  _V )
168 rhmghm 18725 . . . . . . . . . . . 12  |-  ( E  e.  ( (Poly1 ` fld ) RingHom  (fld 
^s 
CC ) )  ->  E  e.  ( (Poly1 ` fld )  GrpHom  (fld 
^s 
CC ) ) )
16956, 168ax-mp 5 . . . . . . . . . . 11  |-  E  e.  ( (Poly1 ` fld )  GrpHom  (fld 
^s 
CC ) )
170 ghmmhm 17670 . . . . . . . . . . 11  |-  ( E  e.  ( (Poly1 ` fld )  GrpHom  (fld  ^s  CC ) )  ->  E  e.  ( (Poly1 ` fld ) MndHom  (fld 
^s 
CC ) ) )
171169, 170mp1i 13 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  E  e.  ( (Poly1 ` fld ) MndHom  (fld 
^s 
CC ) ) )
17254ply1lmod 19622 . . . . . . . . . . . . 13  |-  (fld  e.  Ring  -> 
(Poly1 `
fld )  e.  LMod )
1739, 172mp1i 13 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  (Poly1 ` fld )  e.  LMod )
17412ad2antrr 762 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  S  C_  CC )
175 eqid 2622 . . . . . . . . . . . . . . . . 17  |-  ( Base `  R )  =  (
Base `  R )
176155, 59, 58, 175coe1f 19581 . . . . . . . . . . . . . . . 16  |-  ( a  e.  A  ->  (coe1 `  a ) : NN0 --> (
Base `  R )
)
17757subrgbas 18789 . . . . . . . . . . . . . . . . 17  |-  ( S  e.  (SubRing ` fld )  ->  S  =  ( Base `  R
) )
178177feq3d 6032 . . . . . . . . . . . . . . . 16  |-  ( S  e.  (SubRing ` fld )  ->  ( (coe1 `  a ) : NN0 --> S  <-> 
(coe1 `  a ) : NN0 --> ( Base `  R
) ) )
179176, 178syl5ibr 236 . . . . . . . . . . . . . . 15  |-  ( S  e.  (SubRing ` fld )  ->  ( a  e.  A  ->  (coe1 `  a ) : NN0 --> S ) )
180179imp 445 . . . . . . . . . . . . . 14  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (coe1 `  a ) : NN0 --> S )
181180ffvelrnda 6359 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( (coe1 `  a ) `  k
)  e.  S )
182174, 181sseldd 3604 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( (coe1 `  a ) `  k
)  e.  CC )
183111ringmgp 18553 . . . . . . . . . . . . . 14  |-  ( (Poly1 ` fld )  e.  Ring  ->  (mulGrp `  (Poly1 ` fld ) )  e.  Mnd )
184161, 183mp1i 13 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  (mulGrp `  (Poly1 ` fld )
)  e.  Mnd )
185 simpr 477 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  k  e.  NN0 )
186115, 54, 94vr1cl 19587 . . . . . . . . . . . . . 14  |-  (fld  e.  Ring  -> 
(var1 ` fld )  e.  ( Base `  (Poly1 ` fld ) ) )
1879, 186mp1i 13 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  (var1 ` fld )  e.  ( Base `  (Poly1 ` fld ) ) )
188111, 94mgpbas 18495 . . . . . . . . . . . . . 14  |-  ( Base `  (Poly1 ` fld ) )  =  (
Base `  (mulGrp `  (Poly1 ` fld )
) )
189188, 117mulgnn0cl 17558 . . . . . . . . . . . . 13  |-  ( ( (mulGrp `  (Poly1 ` fld ) )  e.  Mnd  /\  k  e.  NN0  /\  (var1 ` fld )  e.  ( Base `  (Poly1 ` fld ) ) )  -> 
( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  ( Base `  (Poly1 ` fld ) ) )
190184, 185, 187, 189syl3anc 1326 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( k
(.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) )  e.  (
Base `  (Poly1 ` fld ) ) )
19154ply1sca 19623 . . . . . . . . . . . . . 14  |-  (fld  e.  Ring  ->fld  =  (Scalar `  (Poly1 ` fld ) ) )
1929, 191ax-mp 5 . . . . . . . . . . . . 13  |-fld  =  (Scalar `  (Poly1 ` fld )
)
19394, 192, 154, 4lmodvscl 18880 . . . . . . . . . . . 12  |-  ( ( (Poly1 ` fld )  e.  LMod  /\  (
(coe1 `  a ) `  k )  e.  CC  /\  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  ( Base `  (Poly1 ` fld ) ) )  -> 
( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  e.  (
Base `  (Poly1 ` fld ) ) )
194173, 182, 190, 193syl3anc 1326 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( (
(coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) )  e.  ( Base `  (Poly1 ` fld )
) )
195 eqid 2622 . . . . . . . . . . 11  |-  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  =  ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )
196194, 195fmptd 6385 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) : NN0 --> ( Base `  (Poly1 ` fld ) ) )
197166mptex 6486 . . . . . . . . . . . . 13  |-  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  e.  _V
198 funmpt 5926 . . . . . . . . . . . . 13  |-  Fun  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )
199 fvex 6201 . . . . . . . . . . . . 13  |-  ( 0g
`  (Poly1 ` fld ) )  e.  _V
200197, 198, 1993pm3.2i 1239 . . . . . . . . . . . 12  |-  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  e.  _V  /\  Fun  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  /\  ( 0g `  (Poly1 ` fld ) )  e.  _V )
201200a1i 11 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  e. 
_V  /\  Fun  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  /\  ( 0g `  (Poly1 ` fld ) )  e.  _V ) )
202155, 94, 54, 17coe1sfi 19583 . . . . . . . . . . . . 13  |-  ( a  e.  ( Base `  (Poly1 ` fld )
)  ->  (coe1 `  a
) finSupp  0 )
203153, 202syl 17 . . . . . . . . . . . 12  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (coe1 `  a ) finSupp  0 )
204203fsuppimpd 8282 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
(coe1 `  a ) supp  0
)  e.  Fin )
205180feqmptd 6249 . . . . . . . . . . . . . 14  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (coe1 `  a )  =  ( k  e.  NN0  |->  ( (coe1 `  a ) `  k
) ) )
206205oveq1d 6665 . . . . . . . . . . . . 13  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
(coe1 `  a ) supp  0
)  =  ( ( k  e.  NN0  |->  ( (coe1 `  a ) `  k
) ) supp  0 ) )
207 eqimss2 3658 . . . . . . . . . . . . 13  |-  ( ( (coe1 `  a ) supp  0
)  =  ( ( k  e.  NN0  |->  ( (coe1 `  a ) `  k
) ) supp  0 )  ->  ( ( k  e.  NN0  |->  ( (coe1 `  a ) `  k
) ) supp  0 ) 
C_  ( (coe1 `  a
) supp  0 ) )
208206, 207syl 17 . . . . . . . . . . . 12  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( k  e.  NN0  |->  ( (coe1 `  a ) `  k ) ) supp  0
)  C_  ( (coe1 `  a ) supp  0 ) )
2099, 172mp1i 13 . . . . . . . . . . . . 13  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (Poly1 ` fld )  e.  LMod )
21094, 192, 154, 17, 159lmod0vs 18896 . . . . . . . . . . . . 13  |-  ( ( (Poly1 ` fld )  e.  LMod  /\  x  e.  ( Base `  (Poly1 ` fld )
) )  ->  (
0 ( .s `  (Poly1 ` fld ) ) x )  =  ( 0g `  (Poly1 ` fld ) ) )
211209, 210sylan 488 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  x  e.  ( Base `  (Poly1 ` fld ) ) )  -> 
( 0 ( .s
`  (Poly1 ` fld ) ) x )  =  ( 0g `  (Poly1 ` fld ) ) )
212 c0ex 10034 . . . . . . . . . . . . 13  |-  0  e.  _V
213212a1i 11 . . . . . . . . . . . 12  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  0  e.  _V )
214208, 211, 181, 190, 213suppssov1 7327 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) supp  ( 0g `  (Poly1 ` fld ) ) )  C_  ( (coe1 `  a ) supp  0
) )
215 suppssfifsupp 8290 . . . . . . . . . . 11  |-  ( ( ( ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  e.  _V  /\  Fun  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  /\  ( 0g `  (Poly1 ` fld ) )  e.  _V )  /\  ( ( (coe1 `  a ) supp  0 )  e.  Fin  /\  (
( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) supp  ( 0g `  (Poly1 ` fld ) ) )  C_  ( (coe1 `  a ) supp  0
) ) )  -> 
( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) finSupp  ( 0g `  (Poly1 ` fld ) ) )
216201, 204, 214, 215syl12anc 1324 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) finSupp 
( 0g `  (Poly1 ` fld )
) )
21794, 159, 163, 165, 167, 171, 196, 216gsummhm 18338 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
(fld  ^s  CC )  gsumg  ( E  o.  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) ) )  =  ( E `  ( (Poly1 ` fld ) 
gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) ) ) )
218 eqidd 2623 . . . . . . . . . . . 12  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) )  =  ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) )
21996a1i 11 . . . . . . . . . . . . 13  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  E : ( Base `  (Poly1 ` fld )
) --> ( Base `  (fld  ^s  CC ) ) )
220219feqmptd 6249 . . . . . . . . . . . 12  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  E  =  ( x  e.  ( Base `  (Poly1 ` fld )
)  |->  ( E `  x ) ) )
221 fveq2 6191 . . . . . . . . . . . 12  |-  ( x  =  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) )  -> 
( E `  x
)  =  ( E `
 ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) )
222194, 218, 220, 221fmptco 6396 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E  o.  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) )  =  ( k  e.  NN0  |->  ( E `
 ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) ) )
2239a1i 11 . . . . . . . . . . . . . . 15  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->fld  e.  Ring )
2246a1i 11 . . . . . . . . . . . . . . 15  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  CC  e.  _V )
22596ffvelrni 6358 . . . . . . . . . . . . . . . 16  |-  ( ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) )  e.  ( Base `  (Poly1 ` fld )
)  ->  ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  e.  ( Base `  (fld  ^s  CC ) ) )
226194, 225syl 17 . . . . . . . . . . . . . . 15  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  e.  ( Base `  (fld  ^s  CC ) ) )
2273, 4, 67, 223, 224, 226pwselbas 16149 . . . . . . . . . . . . . 14  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) : CC --> CC )
228227feqmptd 6249 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  =  ( z  e.  CC  |->  ( ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) ) `  z ) ) )
22952a1i 11 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->fld  e.  CRing )
230 simpr 477 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  z  e.  CC )
23153, 115, 4, 54, 94, 229, 230evl1vard 19701 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
(var1 ` fld )  e.  ( Base `  (Poly1 ` fld ) )  /\  (
( E `  (var1 ` fld )
) `  z )  =  z ) )
232185adantr 481 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  k  e.  NN0 )
23353, 54, 4, 94, 229, 230, 231, 117, 128, 232evl1expd 19709 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  ( Base `  (Poly1 ` fld ) )  /\  (
( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z )  =  ( k (.g `  (mulGrp ` fld ) ) z ) ) )
234230, 232, 132syl2anc 693 . . . . . . . . . . . . . . . . . . 19  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
k (.g `  (mulGrp ` fld ) ) z )  =  ( z ^
k ) )
235234eqeq2d 2632 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) `  z
)  =  ( k (.g `  (mulGrp ` fld ) ) z )  <-> 
( ( E `  ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) `  z
)  =  ( z ^ k ) ) )
236235anbi2d 740 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  ( Base `  (Poly1 ` fld ) )  /\  (
( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z )  =  ( k (.g `  (mulGrp ` fld ) ) z ) )  <->  ( ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) )  e.  (
Base `  (Poly1 ` fld ) )  /\  (
( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z )  =  ( z ^ k ) ) ) )
237233, 236mpbid 222 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) )  e.  ( Base `  (Poly1 ` fld ) )  /\  (
( E `  (
k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) `  z )  =  ( z ^ k ) ) )
238182adantr 481 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
(coe1 `  a ) `  k )  e.  CC )
23953, 54, 4, 94, 229, 230, 237, 238, 154, 81evl1vsd 19708 . . . . . . . . . . . . . . 15  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) )  e.  (
Base `  (Poly1 ` fld ) )  /\  (
( E `  (
( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) `
 z )  =  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
240239simprd 479 . . . . . . . . . . . . . 14  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  NN0 )  /\  z  e.  CC )  ->  (
( E `  (
( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) `
 z )  =  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )
241240mpteq2dva 4744 . . . . . . . . . . . . 13  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( z  e.  CC  |->  ( ( E `
 ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) `
 z ) )  =  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) ) )
242228, 241eqtrd 2656 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  NN0 )  ->  ( E `  ( ( (coe1 `  a
) `  k )
( .s `  (Poly1 ` fld )
) ( k (.g `  (mulGrp `  (Poly1 ` fld ) ) ) (var1 ` fld ) ) ) )  =  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
243242mpteq2dva 4744 . . . . . . . . . . 11  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
k  e.  NN0  |->  ( E `
 ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) )  =  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) )
244222, 243eqtrd 2656 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E  o.  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k
) ( .s `  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) )  =  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) )
245244oveq2d 6666 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
(fld  ^s  CC )  gsumg  ( E  o.  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k ) ( .s
`  (Poly1 ` fld ) ) ( k (.g `  (mulGrp `  (Poly1 ` fld )
) ) (var1 ` fld ) ) ) ) ) )  =  ( (fld 
^s 
CC )  gsumg  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) ) )
246158, 217, 2453eqtr2d 2662 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E `  a )  =  ( (fld  ^s  CC ) 
gsumg  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) ) )
2476a1i 11 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  CC  e.  _V )
2489, 10mp1i 13 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->fld  e. CMnd )
249182adantlr 751 . . . . . . . . . . 11  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  NN0 )  ->  (
(coe1 `  a ) `  k )  e.  CC )
25033adantll 750 . . . . . . . . . . 11  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  NN0 )  ->  (
z ^ k )  e.  CC )
251249, 250mulcld 10060 . . . . . . . . . 10  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  NN0 )  ->  (
( (coe1 `  a ) `  k )  x.  (
z ^ k ) )  e.  CC )
252251anasss 679 . . . . . . . . 9  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  ( z  e.  CC  /\  k  e. 
NN0 ) )  -> 
( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) )  e.  CC )
253166mptex 6486 . . . . . . . . . . . 12  |-  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) )  e. 
_V
254 funmpt 5926 . . . . . . . . . . . 12  |-  Fun  (
k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) )
255253, 254, 393pm3.2i 1239 . . . . . . . . . . 11  |-  ( ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) )  e. 
_V  /\  Fun  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) )  /\  ( 0g `  (fld  ^s  CC ) )  e.  _V )
256255a1i 11 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )  e.  _V  /\  Fun  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )  /\  ( 0g `  (fld  ^s  CC ) )  e.  _V ) )
257 fzfid 12772 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  e.  Fin )
258 eldifn 3733 . . . . . . . . . . . . . . . . . 18  |-  ( k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )  ->  -.  k  e.  ( 0 ... if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
259258adantl 482 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  -.  k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
260153ad2antrr 762 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  a  e.  ( Base `  (Poly1 ` fld )
) )
261 eldifi 3732 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )  ->  k  e.  NN0 )
262261adantl 482 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  k  e.  NN0 )
263 eqid 2622 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( deg1  ` fld )  =  ( deg1  ` fld )
264263, 54, 94, 17, 155deg1ge 23858 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( a  e.  ( Base `  (Poly1 ` fld ) )  /\  k  e.  NN0  /\  ( (coe1 `  a ) `  k
)  =/=  0 )  ->  k  <_  (
( deg1  `
fld ) `  a ) )
2652643expia 1267 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( a  e.  ( Base `  (Poly1 ` fld ) )  /\  k  e.  NN0 )  ->  (
( (coe1 `  a ) `  k )  =/=  0  ->  k  <_  ( ( deg1  ` fld ) `  a ) ) )
266260, 262, 265syl2anc 693 . . . . . . . . . . . . . . . . . . . . 21  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  =/=  0  ->  k  <_  ( ( deg1  ` fld ) `  a ) ) )
267 0xr 10086 . . . . . . . . . . . . . . . . . . . . . . 23  |-  0  e.  RR*
268263, 54, 94deg1xrcl 23842 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( a  e.  ( Base `  (Poly1 ` fld )
)  ->  ( ( deg1  ` fld ) `  a )  e.  RR* )
269153, 268syl 17 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( deg1  `
fld ) `  a )  e.  RR* )
270269ad2antrr 762 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( deg1  `
fld ) `  a )  e.  RR* )
271 xrmax2 12007 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( 0  e.  RR*  /\  (
( deg1  `
fld ) `  a )  e.  RR* )  ->  (
( deg1  `
fld ) `  a )  <_  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )
272267, 270, 271sylancr 695 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( deg1  `
fld ) `  a )  <_  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )
273262nn0red 11352 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  k  e.  RR )
274273rexrd 10089 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  k  e.  RR* )
275 ifcl 4130 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( ( ( deg1  ` fld ) `  a )  e.  RR*  /\  0  e.  RR* )  ->  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
RR* )
276270, 267, 275sylancl 694 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
RR* )
277 xrletr 11989 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( k  e.  RR*  /\  (
( deg1  `
fld ) `  a )  e.  RR*  /\  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
RR* )  ->  (
( k  <_  (
( deg1  `
fld ) `  a )  /\  ( ( deg1  ` fld ) `  a )  <_  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  ->  k  <_  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
278274, 270, 276, 277syl3anc 1326 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( k  <_  (
( deg1  `
fld ) `  a )  /\  ( ( deg1  ` fld ) `  a )  <_  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  ->  k  <_  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
279272, 278mpan2d 710 . . . . . . . . . . . . . . . . . . . . 21  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
k  <_  ( ( deg1  ` fld ) `  a )  ->  k  <_  if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
280266, 279syld 47 . . . . . . . . . . . . . . . . . . . 20  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  =/=  0  ->  k  <_  if (
0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
281280, 262jctild 566 . . . . . . . . . . . . . . . . . . 19  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  =/=  0  ->  ( k  e.  NN0  /\  k  <_  if (
0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )
282263, 54, 94deg1cl 23843 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( a  e.  ( Base `  (Poly1 ` fld )
)  ->  ( ( deg1  ` fld ) `  a )  e.  ( NN0  u.  { -oo } ) )
283153, 282syl 17 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( deg1  `
fld ) `  a )  e.  ( NN0  u.  { -oo } ) )
284 elun 3753 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( deg1  ` fld ) `  a )  e.  ( NN0  u.  { -oo } )  <->  ( (
( deg1  `
fld ) `  a )  e.  NN0  \/  (
( deg1  `
fld ) `  a )  e.  { -oo }
) )
285283, 284sylib 208 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( ( deg1  ` fld ) `  a )  e.  NN0  \/  (
( deg1  `
fld ) `  a )  e.  { -oo }
) )
286 nn0ge0 11318 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( ( ( deg1  ` fld ) `  a )  e.  NN0  ->  0  <_ 
( ( deg1  ` fld ) `  a ) )
287286iftrued 4094 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( ( deg1  ` fld ) `  a )  e.  NN0  ->  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  =  ( ( deg1  ` fld ) `  a ) )
288 id 22 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( ( deg1  ` fld ) `  a )  e.  NN0  ->  ( ( deg1  ` fld ) `
 a )  e. 
NN0 )
289287, 288eqeltrd 2701 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( deg1  ` fld ) `  a )  e.  NN0  ->  if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0 )
290 mnflt0 11959 . . . . . . . . . . . . . . . . . . . . . . . . . . 27  |- -oo  <  0
291 mnfxr 10096 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  |- -oo  e.  RR*
292 xrltnle 10105 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28  |-  ( ( -oo  e.  RR*  /\  0  e.  RR* )  ->  ( -oo  <  0  <->  -.  0  <_ -oo ) )
293291, 267, 292mp2an 708 . . . . . . . . . . . . . . . . . . . . . . . . . . 27  |-  ( -oo  <  0  <->  -.  0  <_ -oo )
294290, 293mpbi 220 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  -.  0  <_ -oo
295 elsni 4194 . . . . . . . . . . . . . . . . . . . . . . . . . . 27  |-  ( ( ( deg1  ` fld ) `  a )  e.  { -oo }  ->  ( ( deg1  ` fld ) `  a )  = -oo )
296295breq2d 4665 . . . . . . . . . . . . . . . . . . . . . . . . . 26  |-  ( ( ( deg1  ` fld ) `  a )  e.  { -oo }  ->  ( 0  <_  (
( deg1  `
fld ) `  a )  <->  0  <_ -oo )
)
297294, 296mtbiri 317 . . . . . . . . . . . . . . . . . . . . . . . . 25  |-  ( ( ( deg1  ` fld ) `  a )  e.  { -oo }  ->  -.  0  <_  (
( deg1  `
fld ) `  a ) )
298297iffalsed 4097 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  ( ( ( deg1  ` fld ) `  a )  e.  { -oo }  ->  if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  =  0 )
299 0nn0 11307 . . . . . . . . . . . . . . . . . . . . . . . 24  |-  0  e.  NN0
300298, 299syl6eqel 2709 . . . . . . . . . . . . . . . . . . . . . . 23  |-  ( ( ( deg1  ` fld ) `  a )  e.  { -oo }  ->  if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0 )
301289, 300jaoi 394 . . . . . . . . . . . . . . . . . . . . . 22  |-  ( ( ( ( deg1  ` fld ) `  a )  e.  NN0  \/  (
( deg1  `
fld ) `  a )  e.  { -oo }
)  ->  if (
0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0 )
302285, 301syl 17 . . . . . . . . . . . . . . . . . . . . 21  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0 )
303302ad2antrr 762 . . . . . . . . . . . . . . . . . . . 20  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0 )
304 fznn0 12432 . . . . . . . . . . . . . . . . . . . 20  |-  ( if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0  ->  ( k  e.  ( 0 ... if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  <-> 
( k  e.  NN0  /\  k  <_  if (
0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )
305303, 304syl 17 . . . . . . . . . . . . . . . . . . 19  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  <-> 
( k  e.  NN0  /\  k  <_  if (
0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )
306281, 305sylibrd 249 . . . . . . . . . . . . . . . . . 18  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  =/=  0  ->  k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )
307306necon1bd 2812 . . . . . . . . . . . . . . . . 17  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  ( -.  k  e.  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  ->  ( (coe1 `  a
) `  k )  =  0 ) )
308259, 307mpd 15 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
(coe1 `  a ) `  k )  =  0 )
309308oveq1d 6665 . . . . . . . . . . . . . . 15  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  x.  (
z ^ k ) )  =  ( 0  x.  ( z ^
k ) ) )
310261, 250sylan2 491 . . . . . . . . . . . . . . . 16  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
z ^ k )  e.  CC )
311310mul02d 10234 . . . . . . . . . . . . . . 15  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
0  x.  ( z ^ k ) )  =  0 )
312309, 311eqtrd 2656 . . . . . . . . . . . . . 14  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
( (coe1 `  a ) `  k )  x.  (
z ^ k ) )  =  0 )
313312an32s 846 . . . . . . . . . . . . 13  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  k  e.  ( NN0  \  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  /\  z  e.  CC )  ->  (
( (coe1 `  a ) `  k )  x.  (
z ^ k ) )  =  0 )
314313mpteq2dva 4744 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  ( NN0  \  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  =  ( z  e.  CC  |->  0 ) )
315 fconstmpt 5163 . . . . . . . . . . . . 13  |-  ( CC 
X.  { 0 } )  =  ( z  e.  CC  |->  0 )
316 ringmnd 18556 . . . . . . . . . . . . . . 15  |-  (fld  e.  Ring  ->fld  e.  Mnd )
3179, 316ax-mp 5 . . . . . . . . . . . . . 14  |-fld  e.  Mnd
3183, 17pws0g 17326 . . . . . . . . . . . . . 14  |-  ( (fld  e. 
Mnd  /\  CC  e.  _V )  ->  ( CC 
X.  { 0 } )  =  ( 0g
`  (fld 
^s 
CC ) ) )
319317, 6, 318mp2an 708 . . . . . . . . . . . . 13  |-  ( CC 
X.  { 0 } )  =  ( 0g
`  (fld 
^s 
CC ) )
320315, 319eqtr3i 2646 . . . . . . . . . . . 12  |-  ( z  e.  CC  |->  0 )  =  ( 0g `  (fld  ^s  CC ) )
321314, 320syl6eq 2672 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  k  e.  ( NN0  \  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  =  ( 0g `  (fld  ^s  CC ) ) )
322321, 167suppss2 7329 . . . . . . . . . 10  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) supp  ( 0g `  (fld  ^s  CC ) ) )  C_  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
323 suppssfifsupp 8290 . . . . . . . . . 10  |-  ( ( ( ( k  e. 
NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) ) )  e.  _V  /\ 
Fun  ( k  e. 
NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) ) )  /\  ( 0g `  (fld 
^s 
CC ) )  e. 
_V )  /\  (
( 0 ... if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  e.  Fin  /\  (
( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) supp  ( 0g `  (fld  ^s  CC ) ) )  C_  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) finSupp  ( 0g `  (fld 
^s 
CC ) ) )
324256, 257, 322, 323syl12anc 1324 . . . . . . . . 9  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) finSupp  ( 0g `  (fld 
^s 
CC ) ) )
3253, 4, 5, 247, 167, 248, 252, 324pwsgsum 18378 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
(fld  ^s  CC )  gsumg  ( k  e.  NN0  |->  ( z  e.  CC  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) )  =  ( z  e.  CC  |->  (fld  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) ) ) )
326 fz0ssnn0 12435 . . . . . . . . . . . 12  |-  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
C_  NN0
327 resmpt 5449 . . . . . . . . . . . 12  |-  ( ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
C_  NN0  ->  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  |`  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )  =  ( k  e.  ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
|->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
328326, 327ax-mp 5 . . . . . . . . . . 11  |-  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  |`  (
0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )  =  ( k  e.  ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
|->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )
329328oveq2i 6661 . . . . . . . . . 10  |-  (fld  gsumg  ( ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) )  |`  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  =  (fld  gsumg  ( k  e.  ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
|->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
3309, 10mp1i 13 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->fld  e. CMnd )
331166a1i 11 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  NN0  e.  _V )
332 eqid 2622 . . . . . . . . . . . 12  |-  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  =  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )
333251, 332fmptd 6385 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) : NN0 --> CC )
334312, 331suppss2 7329 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) supp  0 ) 
C_  ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )
335166mptex 6486 . . . . . . . . . . . . . 14  |-  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  e.  _V
336 funmpt 5926 . . . . . . . . . . . . . 14  |-  Fun  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )
337335, 336, 2123pm3.2i 1239 . . . . . . . . . . . . 13  |-  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  e.  _V  /\ 
Fun  ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) )  /\  0  e. 
_V )
338337a1i 11 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  ( ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) )  e.  _V  /\ 
Fun  ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) )  /\  0  e. 
_V ) )
339 fzfid 12772 . . . . . . . . . . . 12  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  e.  Fin )
340 suppssfifsupp 8290 . . . . . . . . . . . 12  |-  ( ( ( ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) )  e.  _V  /\  Fun  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )  /\  0  e.  _V )  /\  ( ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  e.  Fin  /\  (
( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) supp  0
)  C_  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  ->  (
k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) finSupp  0 )
341338, 339, 334, 340syl12anc 1324 . . . . . . . . . . 11  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) finSupp  0 )
3424, 17, 330, 331, 333, 334, 341gsumres 18314 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  (fld  gsumg  ( ( k  e. 
NN0  |->  ( ( (coe1 `  a ) `  k
)  x.  ( z ^ k ) ) )  |`  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ) )  =  (fld  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) )
343 elfznn0 12433 . . . . . . . . . . . 12  |-  ( k  e.  ( 0 ...
if ( 0  <_ 
( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) )  ->  k  e.  NN0 )
344343, 251sylan2 491 . . . . . . . . . . 11  |-  ( ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  /\  z  e.  CC )  /\  k  e.  ( 0 ... if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) )  ->  ( (
(coe1 `  a ) `  k )  x.  (
z ^ k ) )  e.  CC )
345339, 344gsumfsum 19813 . . . . . . . . . 10  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  (fld  gsumg  ( k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) 
|->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )  =  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )
346329, 342, 3453eqtr3a 2680 . . . . . . . . 9  |-  ( ( ( S  e.  (SubRing ` fld )  /\  a  e.  A
)  /\  z  e.  CC )  ->  (fld  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )  =  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )
347346mpteq2dva 4744 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
z  e.  CC  |->  (fld  gsumg  ( k  e.  NN0  |->  ( ( (coe1 `  a ) `  k )  x.  (
z ^ k ) ) ) ) )  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
348246, 325, 3473eqtrd 2660 . . . . . . 7  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E `  a )  =  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) ) )
34912adantr 481 . . . . . . . 8  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  S  C_  CC )
350 elplyr 23957 . . . . . . . 8  |-  ( ( S  C_  CC  /\  if ( 0  <_  (
( deg1  `
fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 )  e. 
NN0  /\  (coe1 `  a
) : NN0 --> S )  ->  ( z  e.  CC  |->  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )  e.  (Poly `  S )
)
351349, 302, 180, 350syl3anc 1326 . . . . . . 7  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
z  e.  CC  |->  sum_ k  e.  ( 0 ... if ( 0  <_  ( ( deg1  ` fld ) `  a ) ,  ( ( deg1  ` fld ) `  a ) ,  0 ) ) ( ( (coe1 `  a
) `  k )  x.  ( z ^ k
) ) )  e.  (Poly `  S )
)
352348, 351eqeltrd 2701 . . . . . 6  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  ( E `  a )  e.  (Poly `  S )
)
353 eleq1 2689 . . . . . 6  |-  ( ( E `  a )  =  f  ->  (
( E `  a
)  e.  (Poly `  S )  <->  f  e.  (Poly `  S ) ) )
354352, 353syl5ibcom 235 . . . . 5  |-  ( ( S  e.  (SubRing ` fld )  /\  a  e.  A )  ->  (
( E `  a
)  =  f  -> 
f  e.  (Poly `  S ) ) )
355354rexlimdva 3031 . . . 4  |-  ( S  e.  (SubRing ` fld )  ->  ( E. a  e.  A  ( E `  a )  =  f  ->  f  e.  (Poly `  S )
) )
356152, 355syl5 34 . . 3  |-  ( S  e.  (SubRing ` fld )  ->  ( f  e.  ( E " A )  ->  f  e.  (Poly `  S )
) )
357148, 356impbid 202 . 2  |-  ( S  e.  (SubRing ` fld )  ->  ( f  e.  (Poly `  S
)  <->  f  e.  ( E " A ) ) )
358357eqrdv 2620 1  |-  ( S  e.  (SubRing ` fld )  ->  (Poly `  S )  =  ( E " A ) )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    <-> wb 196    \/ wo 383    /\ wa 384    /\ w3a 1037    = wceq 1483    e. wcel 1990    =/= wne 2794   E.wrex 2913   _Vcvv 3200    \ cdif 3571    u. cun 3572    C_ wss 3574   ifcif 4086   {csn 4177   class class class wbr 4653    |-> cmpt 4729    X. cxp 5112    |` cres 5116   "cima 5117    o. ccom 5118   Fun wfun 5882    Fn wfn 5883   -->wf 5884   ` cfv 5888  (class class class)co 6650    oFcof 6895   supp csupp 7295    ^m cmap 7857   Fincfn 7955   finSupp cfsupp 8275   CCcc 9934   0cc0 9936    x. cmul 9941   -oocmnf 10072   RR*cxr 10073    < clt 10074    <_ cle 10075   NN0cn0 11292   ...cfz 12326   ^cexp 12860   sum_csu 14416   Basecbs 15857   ↾s cress 15858   .rcmulr 15942  Scalarcsca 15944   .scvsca 15945   0gc0g 16100    gsumg cgsu 16101    ^s cpws 16107   Mndcmnd 17294   MndHom cmhm 17333  SubMndcsubmnd 17334  .gcmg 17540  SubGrpcsubg 17588    GrpHom cghm 17657  CMndccmn 18193  mulGrpcmgp 18489   Ringcrg 18547   CRingccrg 18548   RingHom crh 18712  SubRingcsubrg 18776   LModclmod 18863  algSccascl 19311  var1cv1 19546  Poly1cpl1 19547  coe1cco1 19548  eval1ce1 19679  ℂfldccnfld 19746   deg1 cdg1 23814  Polycply 23940
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014  ax-addf 10015  ax-mulf 10016
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-iin 4523  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-of 6897  df-ofr 6898  df-om 7066  df-1st 7168  df-2nd 7169  df-supp 7296  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-2o 7561  df-oadd 7564  df-er 7742  df-map 7859  df-pm 7860  df-ixp 7909  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-fsupp 8276  df-sup 8348  df-oi 8415  df-card 8765  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-4 11081  df-5 11082  df-6 11083  df-7 11084  df-8 11085  df-9 11086  df-n0 11293  df-z 11378  df-dec 11494  df-uz 11688  df-rp 11833  df-fz 12327  df-fzo 12466  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-clim 14219  df-sum 14417  df-struct 15859  df-ndx 15860  df-slot 15861  df-base 15863  df-sets 15864  df-ress 15865  df-plusg 15954  df-mulr 15955  df-starv 15956  df-sca 15957  df-vsca 15958  df-ip 15959  df-tset 15960  df-ple 15961  df-ds 15964  df-unif 15965  df-hom 15966  df-cco 15967  df-0g 16102  df-gsum 16103  df-prds 16108  df-pws 16110  df-mre 16246  df-mrc 16247  df-acs 16249  df-mgm 17242  df-sgrp 17284  df-mnd 17295  df-mhm 17335  df-submnd 17336  df-grp 17425  df-minusg 17426  df-sbg 17427  df-mulg 17541  df-subg 17591  df-ghm 17658  df-cntz 17750  df-cmn 18195  df-abl 18196  df-mgp 18490  df-ur 18502  df-srg 18506  df-ring 18549  df-cring 18550  df-rnghom 18715  df-subrg 18778  df-lmod 18865  df-lss 18933  df-lsp 18972  df-assa 19312  df-asp 19313  df-ascl 19314  df-psr 19356  df-mvr 19357  df-mpl 19358  df-opsr 19360  df-evls 19506  df-evl 19507  df-psr1 19550  df-vr1 19551  df-ply1 19552  df-coe1 19553  df-evl1 19681  df-cnfld 19747  df-mdeg 23815  df-deg1 23816  df-ply 23944
This theorem is referenced by: (None)
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