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Theorem isghm3 16395
Description: Property of a group homomorphism, similar to ismhm 16095. (Contributed by Mario Carneiro, 7-Mar-2015.)
Hypotheses
Ref Expression
isghm.w  |-  X  =  ( Base `  S
)
isghm.x  |-  Y  =  ( Base `  T
)
isghm.a  |-  .+  =  ( +g  `  S )
isghm.b  |-  .+^  =  ( +g  `  T )
Assertion
Ref Expression
isghm3  |-  ( ( S  e.  Grp  /\  T  e.  Grp )  ->  ( F  e.  ( S  GrpHom  T )  <->  ( F : X --> Y  /\  A. u  e.  X  A. v  e.  X  ( F `  ( u  .+  v ) )  =  ( ( F `  u )  .+^  ( F `
 v ) ) ) ) )
Distinct variable groups:    v, u, S    u, T, v    u, X, v    u,  .+ , v    u, Y, v    u,  .+^ , v    u, F, v

Proof of Theorem isghm3
StepHypRef Expression
1 isghm.w . . 3  |-  X  =  ( Base `  S
)
2 isghm.x . . 3  |-  Y  =  ( Base `  T
)
3 isghm.a . . 3  |-  .+  =  ( +g  `  S )
4 isghm.b . . 3  |-  .+^  =  ( +g  `  T )
51, 2, 3, 4isghm 16394 . 2  |-  ( F  e.  ( S  GrpHom  T )  <->  ( ( S  e.  Grp  /\  T  e.  Grp )  /\  ( F : X --> Y  /\  A. u  e.  X  A. v  e.  X  ( F `  ( u  .+  v ) )  =  ( ( F `  u )  .+^  ( F `
 v ) ) ) ) )
65baib 903 1  |-  ( ( S  e.  Grp  /\  T  e.  Grp )  ->  ( F  e.  ( S  GrpHom  T )  <->  ( F : X --> Y  /\  A. u  e.  X  A. v  e.  X  ( F `  ( u  .+  v ) )  =  ( ( F `  u )  .+^  ( F `
 v ) ) ) ) )
Colors of variables: wff setvar class
Syntax hints:    -> wi 4    <-> wb 184    /\ wa 369    = wceq 1395    e. wcel 1819   A.wral 2807   -->wf 5590   ` cfv 5594  (class class class)co 6296   Basecbs 14644   +g cplusg 14712   Grpcgrp 16180    GrpHom cghm 16391
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1619  ax-4 1632  ax-5 1705  ax-6 1748  ax-7 1791  ax-8 1821  ax-9 1823  ax-10 1838  ax-11 1843  ax-12 1855  ax-13 2000  ax-ext 2435  ax-rep 4568  ax-sep 4578  ax-nul 4586  ax-pow 4634  ax-pr 4695  ax-un 6591
This theorem depends on definitions:  df-bi 185  df-or 370  df-an 371  df-3an 975  df-tru 1398  df-ex 1614  df-nf 1618  df-sb 1741  df-eu 2287  df-mo 2288  df-clab 2443  df-cleq 2449  df-clel 2452  df-nfc 2607  df-ne 2654  df-ral 2812  df-rex 2813  df-reu 2814  df-rab 2816  df-v 3111  df-sbc 3328  df-csb 3431  df-dif 3474  df-un 3476  df-in 3478  df-ss 3485  df-nul 3794  df-if 3945  df-pw 4017  df-sn 4033  df-pr 4035  df-op 4039  df-uni 4252  df-iun 4334  df-br 4457  df-opab 4516  df-mpt 4517  df-id 4804  df-xp 5014  df-rel 5015  df-cnv 5016  df-co 5017  df-dm 5018  df-rn 5019  df-res 5020  df-ima 5021  df-iota 5557  df-fun 5596  df-fn 5597  df-f 5598  df-f1 5599  df-fo 5600  df-f1o 5601  df-fv 5602  df-ov 6299  df-oprab 6300  df-mpt2 6301  df-ghm 16392
This theorem is referenced by:  dfrhm2  17493
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