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Theorem ghomf 31606
Description: Mapping property of a group homomorphism. (Contributed by Jeff Madsen, 1-Dec-2009.)
Hypotheses
Ref Expression
ghomf.1  |-  X  =  ran  G
ghomf.2  |-  W  =  ran  H
Assertion
Ref Expression
ghomf  |-  ( ( G  e.  GrpOp  /\  H  e.  GrpOp  /\  F  e.  ( G GrpOpHom  H ) )  ->  F : X --> W )

Proof of Theorem ghomf
Dummy variables  x  y are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 ghomf.1 . . . 4  |-  X  =  ran  G
2 ghomf.2 . . . 4  |-  W  =  ran  H
31, 2elghomOLD 25765 . . 3  |-  ( ( G  e.  GrpOp  /\  H  e.  GrpOp )  ->  ( F  e.  ( G GrpOpHom  H )  <->  ( F : X
--> W  /\  A. x  e.  X  A. y  e.  X  ( ( F `  x ) H ( F `  y ) )  =  ( F `  (
x G y ) ) ) ) )
43simprbda 621 . 2  |-  ( ( ( G  e.  GrpOp  /\  H  e.  GrpOp )  /\  F  e.  ( G GrpOpHom  H ) )  ->  F : X --> W )
543impa 1192 1  |-  ( ( G  e.  GrpOp  /\  H  e.  GrpOp  /\  F  e.  ( G GrpOpHom  H ) )  ->  F : X --> W )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    /\ wa 367    /\ w3a 974    = wceq 1405    e. wcel 1842   A.wral 2753   ran crn 4823   -->wf 5564   ` cfv 5568  (class class class)co 6277   GrpOpcgr 25588   GrpOpHom cghomOLD 25759
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1639  ax-4 1652  ax-5 1725  ax-6 1771  ax-7 1814  ax-8 1844  ax-9 1846  ax-10 1861  ax-11 1866  ax-12 1878  ax-13 2026  ax-ext 2380  ax-rep 4506  ax-sep 4516  ax-nul 4524  ax-pow 4571  ax-pr 4629  ax-un 6573
This theorem depends on definitions:  df-bi 185  df-or 368  df-an 369  df-3an 976  df-tru 1408  df-ex 1634  df-nf 1638  df-sb 1764  df-eu 2242  df-mo 2243  df-clab 2388  df-cleq 2394  df-clel 2397  df-nfc 2552  df-ne 2600  df-ral 2758  df-rex 2759  df-reu 2760  df-rab 2762  df-v 3060  df-sbc 3277  df-csb 3373  df-dif 3416  df-un 3418  df-in 3420  df-ss 3427  df-nul 3738  df-if 3885  df-pw 3956  df-sn 3972  df-pr 3974  df-op 3978  df-uni 4191  df-iun 4272  df-br 4395  df-opab 4453  df-mpt 4454  df-id 4737  df-xp 4828  df-rel 4829  df-cnv 4830  df-co 4831  df-dm 4832  df-rn 4833  df-res 4834  df-ima 4835  df-iota 5532  df-fun 5570  df-fn 5571  df-f 5572  df-f1 5573  df-fo 5574  df-f1o 5575  df-fv 5576  df-ov 6280  df-oprab 6281  df-mpt2 6282  df-ghomOLD 25760
This theorem is referenced by:  ghomdiv  31608  grpokerinj  31609
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