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Theorem isghmd 19200
Description: Deduction for a group homomorphism. (Contributed by Stefan O'Rear, 4-Feb-2015.)
Hypotheses
Ref Expression
isghmd.x 𝑋 = (Base‘𝑆)
isghmd.y 𝑌 = (Base‘𝑇)
isghmd.a + = (+g𝑆)
isghmd.b = (+g𝑇)
isghmd.s (𝜑𝑆 ∈ Grp)
isghmd.t (𝜑𝑇 ∈ Grp)
isghmd.f (𝜑𝐹:𝑋𝑌)
isghmd.l ((𝜑 ∧ (𝑥𝑋𝑦𝑋)) → (𝐹‘(𝑥 + 𝑦)) = ((𝐹𝑥) (𝐹𝑦)))
Assertion
Ref Expression
isghmd (𝜑𝐹 ∈ (𝑆 GrpHom 𝑇))
Distinct variable groups:   𝜑,𝑥,𝑦   𝑥,𝐹,𝑦   𝑥,𝑆,𝑦   𝑥,𝑇,𝑦   𝑥, + ,𝑦   𝑥, ,𝑦   𝑥,𝑋,𝑦   𝑥,𝑌,𝑦

Proof of Theorem isghmd
StepHypRef Expression
1 isghmd.s . 2 (𝜑𝑆 ∈ Grp)
2 isghmd.t . 2 (𝜑𝑇 ∈ Grp)
3 isghmd.f . . 3 (𝜑𝐹:𝑋𝑌)
4 isghmd.l . . . 4 ((𝜑 ∧ (𝑥𝑋𝑦𝑋)) → (𝐹‘(𝑥 + 𝑦)) = ((𝐹𝑥) (𝐹𝑦)))
54ralrimivva 3180 . . 3 (𝜑 → ∀𝑥𝑋𝑦𝑋 (𝐹‘(𝑥 + 𝑦)) = ((𝐹𝑥) (𝐹𝑦)))
63, 5jca 511 . 2 (𝜑 → (𝐹:𝑋𝑌 ∧ ∀𝑥𝑋𝑦𝑋 (𝐹‘(𝑥 + 𝑦)) = ((𝐹𝑥) (𝐹𝑦))))
7 isghmd.x . . 3 𝑋 = (Base‘𝑆)
8 isghmd.y . . 3 𝑌 = (Base‘𝑇)
9 isghmd.a . . 3 + = (+g𝑆)
10 isghmd.b . . 3 = (+g𝑇)
117, 8, 9, 10isghm 19190 . 2 (𝐹 ∈ (𝑆 GrpHom 𝑇) ↔ ((𝑆 ∈ Grp ∧ 𝑇 ∈ Grp) ∧ (𝐹:𝑋𝑌 ∧ ∀𝑥𝑋𝑦𝑋 (𝐹‘(𝑥 + 𝑦)) = ((𝐹𝑥) (𝐹𝑦)))))
121, 2, 6, 11syl21anbrc 1346 1 (𝜑𝐹 ∈ (𝑆 GrpHom 𝑇))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395   = wceq 1542  wcel 2114  wral 3051  wf 6494  cfv 6498  (class class class)co 7367  Basecbs 17179  +gcplusg 17220  Grpcgrp 18909   GrpHom cghm 19187
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-sep 5231  ax-nul 5241  ax-pow 5307  ax-pr 5375  ax-un 7689
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-fv 6506  df-ov 7370  df-oprab 7371  df-mpo 7372  df-1st 7942  df-2nd 7943  df-map 8775  df-ghm 19188
This theorem is referenced by:  ghmmhmb  19202  resghm  19207  conjghm  19224  qusghm  19230  ghmqusnsg  19257  ghmquskerlem3  19261  invoppggim  19335  galactghm  19379  pj1ghm  19678  frgpup1  19750  mulgghm  19803  ghmfghm  19805  invghm  19808  ghmplusg  19821  ringlghm  20293  ringrghm  20294  isrnghmd  20431  isrhmd  20467  lmodvsghm  20918  pwssplit2  21055  rngqiprngghm  21297  cygznlem3  21549  psgnghm  21560  frlmup1  21778  asclghm  21862  evlslem1  22060  mat1ghm  22448  scmatghm  22498  mat2pmatghm  22695  pm2mpghm  22781  reefgim  26415  lmodvslmhm  33111  imasghm  33415  qqhghm  34132  aks6d1c6isolem2  42614  frlmsnic  42985  mplmapghm  42997  imasgim  43528  amgmlemALT  50278
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