MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  ablcom Structured version   Visualization version   GIF version

Theorem ablcom 19993
Description: An Abelian group operation is commutative. (Contributed by NM, 26-Aug-2011.)
Hypotheses
Ref Expression
ablcom.b 𝐵 = (Base‘𝐺)
ablcom.p + = (+g‘𝐺)
Assertion
Ref Expression
ablcom ((𝐺 ∈ Abel ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋))

Proof of Theorem ablcom
StepHypRef Expression
1 ablcmn 19981 . 2 (𝐺 ∈ Abel → 𝐺 ∈ CMnd)
2 ablcom.b . . 3 𝐵 = (Base‘𝐺)
3 ablcom.p . . 3 + = (+g‘𝐺)
42, 3cmncom 19992 . 2 ((𝐺 ∈ CMnd ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋))
51, 4syl3an1 1181 1 ((𝐺 ∈ Abel ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ∧ w3a 1103   = wceq 1570   ∈ wcel 2145  ‘cfv 6531  (class class class)co 7412  Basecbs 17367  +gcplusg 17408  CMndccmn 19974  Abelcabl 19975
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-12 2213  ax-ext 2733
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-sb 2100  df-clab 2740  df-cleq 2753  df-clel 2836  df-ral 3078  df-rex 3088  df-rab 3414  df-v 3453  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-nul 4280  df-if 4483  df-sn 4585  df-pr 4587  df-op 4591  df-uni 4868  df-br 5104  df-iota 6487  df-fv 6539  df-ov 7415  df-cmn 19976  df-abl 19977
This theorem is used by:  ablinvadd  20001  ablsub2inv  20002  ablsubadd  20003  abladdsub  20006  ablsubaddsub  20008  ablpncan3  20010  ablsub32  20015  ablnnncan  20016  ablsubsub23  20018  eqgabl  20028  subgabl  20030  ablnsg  20041  lsmcomx  20050  qusabl  20059  frgpnabl  20069  imasabl  20070  subrngringnsg  20785  ngplcan  24910  clmnegsubdi2  25406  clmvsubval2  25411  ncvspi  25457  r1pid  26459  abliso  33578  ablcomd  33588  r1plmhm  34123  lindsunlem  34238  cnaddcom  39997  toycom  39998  lflsub  40092  lfladdcom  40097
  Copyright terms: Public domain W3C validator