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Theorem ispautN 35385
Description: The predictate "is a projective automorphism." (Contributed by NM, 26-Jan-2012.) (New usage is discouraged.)
Hypotheses
Ref Expression
pautset.s  |-  S  =  ( PSubSp `  K )
pautset.m  |-  M  =  ( PAut `  K
)
Assertion
Ref Expression
ispautN  |-  ( K  e.  B  ->  ( F  e.  M  <->  ( F : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) ) )
Distinct variable groups:    x, y, F    x, K    x, S, y
Allowed substitution hints:    B( x, y)    K( y)    M( x, y)

Proof of Theorem ispautN
Dummy variable  f is distinct from all other variables.
StepHypRef Expression
1 pautset.s . . . 4  |-  S  =  ( PSubSp `  K )
2 pautset.m . . . 4  |-  M  =  ( PAut `  K
)
31, 2pautsetN 35384 . . 3  |-  ( K  e.  B  ->  M  =  { f  |  ( f : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  (
x  C_  y  <->  ( f `  x )  C_  (
f `  y )
) ) } )
43eleq2d 2687 . 2  |-  ( K  e.  B  ->  ( F  e.  M  <->  F  e.  { f  |  ( f : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( f `  x )  C_  (
f `  y )
) ) } ) )
5 f1of 6137 . . . . 5  |-  ( F : S -1-1-onto-> S  ->  F : S
--> S )
6 fvex 6201 . . . . . 6  |-  ( PSubSp `  K )  e.  _V
71, 6eqeltri 2697 . . . . 5  |-  S  e. 
_V
8 fex 6490 . . . . 5  |-  ( ( F : S --> S  /\  S  e.  _V )  ->  F  e.  _V )
95, 7, 8sylancl 694 . . . 4  |-  ( F : S -1-1-onto-> S  ->  F  e.  _V )
109adantr 481 . . 3  |-  ( ( F : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  (
x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) )  ->  F  e.  _V )
11 f1oeq1 6127 . . . 4  |-  ( f  =  F  ->  (
f : S -1-1-onto-> S  <->  F : S
-1-1-onto-> S ) )
12 fveq1 6190 . . . . . . 7  |-  ( f  =  F  ->  (
f `  x )  =  ( F `  x ) )
13 fveq1 6190 . . . . . . 7  |-  ( f  =  F  ->  (
f `  y )  =  ( F `  y ) )
1412, 13sseq12d 3634 . . . . . 6  |-  ( f  =  F  ->  (
( f `  x
)  C_  ( f `  y )  <->  ( F `  x )  C_  ( F `  y )
) )
1514bibi2d 332 . . . . 5  |-  ( f  =  F  ->  (
( x  C_  y  <->  ( f `  x ) 
C_  ( f `  y ) )  <->  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) )
16152ralbidv 2989 . . . 4  |-  ( f  =  F  ->  ( A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( f `  x )  C_  (
f `  y )
)  <->  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) )
1711, 16anbi12d 747 . . 3  |-  ( f  =  F  ->  (
( f : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( f `  x )  C_  (
f `  y )
) )  <->  ( F : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) ) )
1810, 17elab3 3358 . 2  |-  ( F  e.  { f  |  ( f : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( f `  x )  C_  (
f `  y )
) ) }  <->  ( F : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) )
194, 18syl6bb 276 1  |-  ( K  e.  B  ->  ( F  e.  M  <->  ( F : S -1-1-onto-> S  /\  A. x  e.  S  A. y  e.  S  ( x  C_  y  <->  ( F `  x )  C_  ( F `  y )
) ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 196    /\ wa 384    = wceq 1483    e. wcel 1990   {cab 2608   A.wral 2912   _Vcvv 3200    C_ wss 3574   -->wf 5884   -1-1-onto->wf1o 5887   ` cfv 5888   PSubSpcpsubsp 34782   PAutcpautN 35273
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
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-oprab 6654  df-mpt2 6655  df-map 7859  df-pautN 35277
This theorem is referenced by: (None)
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