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Theorem cntzval 17754
Description: Definition substitution for a centralizer. (Contributed by Stefan O'Rear, 5-Sep-2015.)
Hypotheses
Ref Expression
cntzfval.b  |-  B  =  ( Base `  M
)
cntzfval.p  |-  .+  =  ( +g  `  M )
cntzfval.z  |-  Z  =  (Cntz `  M )
Assertion
Ref Expression
cntzval  |-  ( S 
C_  B  ->  ( Z `  S )  =  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) } )
Distinct variable groups:    x, y,  .+    x, B    x, M, y    x, S, y
Allowed substitution hints:    B( y)    Z( x, y)

Proof of Theorem cntzval
Dummy variable  s is distinct from all other variables.
StepHypRef Expression
1 cntzfval.b . . . . 5  |-  B  =  ( Base `  M
)
2 cntzfval.p . . . . 5  |-  .+  =  ( +g  `  M )
3 cntzfval.z . . . . 5  |-  Z  =  (Cntz `  M )
41, 2, 3cntzfval 17753 . . . 4  |-  ( M  e.  _V  ->  Z  =  ( s  e. 
~P B  |->  { x  e.  B  |  A. y  e.  s  (
x  .+  y )  =  ( y  .+  x ) } ) )
54fveq1d 6193 . . 3  |-  ( M  e.  _V  ->  ( Z `  S )  =  ( ( s  e.  ~P B  |->  { x  e.  B  |  A. y  e.  s 
( x  .+  y
)  =  ( y 
.+  x ) } ) `  S ) )
6 fvex 6201 . . . . . 6  |-  ( Base `  M )  e.  _V
71, 6eqeltri 2697 . . . . 5  |-  B  e. 
_V
87elpw2 4828 . . . 4  |-  ( S  e.  ~P B  <->  S  C_  B
)
9 raleq 3138 . . . . . 6  |-  ( s  =  S  ->  ( A. y  e.  s 
( x  .+  y
)  =  ( y 
.+  x )  <->  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) ) )
109rabbidv 3189 . . . . 5  |-  ( s  =  S  ->  { x  e.  B  |  A. y  e.  s  (
x  .+  y )  =  ( y  .+  x ) }  =  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) } )
11 eqid 2622 . . . . 5  |-  ( s  e.  ~P B  |->  { x  e.  B  |  A. y  e.  s 
( x  .+  y
)  =  ( y 
.+  x ) } )  =  ( s  e.  ~P B  |->  { x  e.  B  |  A. y  e.  s 
( x  .+  y
)  =  ( y 
.+  x ) } )
127rabex 4813 . . . . 5  |-  { x  e.  B  |  A. y  e.  S  (
x  .+  y )  =  ( y  .+  x ) }  e.  _V
1310, 11, 12fvmpt 6282 . . . 4  |-  ( S  e.  ~P B  -> 
( ( s  e. 
~P B  |->  { x  e.  B  |  A. y  e.  s  (
x  .+  y )  =  ( y  .+  x ) } ) `
 S )  =  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) } )
148, 13sylbir 225 . . 3  |-  ( S 
C_  B  ->  (
( s  e.  ~P B  |->  { x  e.  B  |  A. y  e.  s  ( x  .+  y )  =  ( y  .+  x ) } ) `  S
)  =  { x  e.  B  |  A. y  e.  S  (
x  .+  y )  =  ( y  .+  x ) } )
155, 14sylan9eq 2676 . 2  |-  ( ( M  e.  _V  /\  S  C_  B )  -> 
( Z `  S
)  =  { x  e.  B  |  A. y  e.  S  (
x  .+  y )  =  ( y  .+  x ) } )
16 0fv 6227 . . . 4  |-  ( (/) `  S )  =  (/)
17 fvprc 6185 . . . . . 6  |-  ( -.  M  e.  _V  ->  (Cntz `  M )  =  (/) )
183, 17syl5eq 2668 . . . . 5  |-  ( -.  M  e.  _V  ->  Z  =  (/) )
1918fveq1d 6193 . . . 4  |-  ( -.  M  e.  _V  ->  ( Z `  S )  =  ( (/) `  S
) )
20 ssrab2 3687 . . . . . 6  |-  { x  e.  B  |  A. y  e.  S  (
x  .+  y )  =  ( y  .+  x ) }  C_  B
21 fvprc 6185 . . . . . . 7  |-  ( -.  M  e.  _V  ->  (
Base `  M )  =  (/) )
221, 21syl5eq 2668 . . . . . 6  |-  ( -.  M  e.  _V  ->  B  =  (/) )
2320, 22syl5sseq 3653 . . . . 5  |-  ( -.  M  e.  _V  ->  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) }  C_  (/) )
24 ss0 3974 . . . . 5  |-  ( { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) }  C_  (/) 
->  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) }  =  (/) )
2523, 24syl 17 . . . 4  |-  ( -.  M  e.  _V  ->  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) }  =  (/) )
2616, 19, 253eqtr4a 2682 . . 3  |-  ( -.  M  e.  _V  ->  ( Z `  S )  =  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) } )
2726adantr 481 . 2  |-  ( ( -.  M  e.  _V  /\  S  C_  B )  ->  ( Z `  S
)  =  { x  e.  B  |  A. y  e.  S  (
x  .+  y )  =  ( y  .+  x ) } )
2815, 27pm2.61ian 831 1  |-  ( S 
C_  B  ->  ( Z `  S )  =  { x  e.  B  |  A. y  e.  S  ( x  .+  y )  =  ( y  .+  x ) } )
Colors of variables: wff setvar class
Syntax hints:   -. wn 3    -> wi 4    = wceq 1483    e. wcel 1990   A.wral 2912   {crab 2916   _Vcvv 3200    C_ wss 3574   (/)c0 3915   ~Pcpw 4158    |-> cmpt 4729   ` cfv 5888  (class class class)co 6650   Basecbs 15857   +g cplusg 15941  Cntzccntz 17748
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
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  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-ral 2917  df-rex 2918  df-reu 2919  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-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  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-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-ov 6653  df-cntz 17750
This theorem is referenced by:  elcntz  17755  cntzsnval  17757  sscntz  17759  cntzssv  17761  cntziinsn  17767
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