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Theorem elsymgrn 10401
Description: Two ways of saying a function is a 1-1-onto mapping of A to itself. (Contributed by Paul Chapman, 25-Feb-2008.)
Hypotheses
Ref Expression
elsymgrn.1 |- A e. V
elsymgrn.2 |- P = {x | x:A-1-1-onto->A}
Assertion
Ref Expression
elsymgrn |- (F e. P <-> F:A-1-1-onto->A)
Distinct variable groups:   x,A   x,F

Proof of Theorem elsymgrn
StepHypRef Expression
1 elisset 1817 . 2 |- (F e. P -> F e. V)
2 f1of 3689 . . 3 |- (F:A-1-1-onto->A -> F:A-->A)
3 elsymgrn.1 . . . 4 |- A e. V
4 fex 3652 . . . 4 |- ((F:A-->A /\ A e. V) -> F e. V)
53, 4mpan2 696 . . 3 |- (F:A-->A -> F e. V)
62, 5syl 10 . 2 |- (F:A-1-1-onto->A -> F e. V)
7 f1oeq1 3684 . . 3 |- (x = F -> (x:A-1-1-onto->A <-> F:A-1-1-onto->A))
8 elsymgrn.2 . . 3 |- P = {x | x:A-1-1-onto->A}
97, 8elab2g 1900 . 2 |- (F e. V -> (F e. P <-> F:A-1-1-onto->A))
101, 6, 9pm5.21nii 679 1 |- (F e. P <-> F:A-1-1-onto->A)
Colors of variables: wff set class
Syntax hints:   <-> wb 146   = wceq 956   e. wcel 958  {cab 1463  Vcvv 1811  -->wf 3178  -1-1-onto->wf1o 3181
This theorem is referenced by:  symgoprab 10402  symgf 10405  symggrpi 10406  symgidi 10407  cayleylem1 10409  cayleylem2 10410
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 962  ax-gen 963  ax-8 964  ax-10 966  ax-11 967  ax-12 968  ax-13 969  ax-14 970  ax-17 971  ax-4 973  ax-5o 975  ax-6o 978  ax-9o 1123  ax-10o 1140  ax-16 1210  ax-11o 1218  ax-ext 1459  ax-rep 2693  ax-sep 2703  ax-pow 2742  ax-pr 2779  ax-un 2866
This theorem depends on definitions:  df-bi 147  df-or 224  df-an 225  df-ex 981  df-sb 1172  df-eu 1382  df-mo 1383  df-clab 1464  df-cleq 1469  df-clel 1472  df-ne 1587  df-rex 1650  df-v 1812  df-dif 2049  df-un 2050  df-in 2051  df-ss 2053  df-nul 2281  df-pw 2402  df-sn 2412  df-pr 2413  df-op 2416  df-uni 2504  df-br 2620  df-opab 2667  df-id 2835  df-xp 3184  df-rel 3185  df-cnv 3186  df-co 3187  df-dm 3188  df-rn 3189  df-res 3190  df-ima 3191  df-fun 3192  df-fn 3193  df-f 3194  df-f1 3195  df-fo 3196  df-f1o 3197
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