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Mirrors > Home > MPE Home > Th. List > ablcom | Structured version Visualization version GIF version |
Description: An Abelian group operation is commutative. (Contributed by NM, 26-Aug-2011.) |
Ref | Expression |
---|---|
ablcom.b | ⊢ 𝐵 = (Base‘𝐺) |
ablcom.p | ⊢ + = (+g‘𝐺) |
Ref | Expression |
---|---|
ablcom | ⊢ ((𝐺 ∈ Abel ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ablcmn 19742 | . 2 ⊢ (𝐺 ∈ Abel → 𝐺 ∈ CMnd) | |
2 | ablcom.b | . . 3 ⊢ 𝐵 = (Base‘𝐺) | |
3 | ablcom.p | . . 3 ⊢ + = (+g‘𝐺) | |
4 | 2, 3 | cmncom 19753 | . 2 ⊢ ((𝐺 ∈ CMnd ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋)) |
5 | 1, 4 | syl3an1 1161 | 1 ⊢ ((𝐺 ∈ Abel ∧ 𝑋 ∈ 𝐵 ∧ 𝑌 ∈ 𝐵) → (𝑋 + 𝑌) = (𝑌 + 𝑋)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1085 = wceq 1534 ∈ wcel 2099 ‘cfv 6548 (class class class)co 7420 Basecbs 17180 +gcplusg 17233 CMndccmn 19735 Abelcabl 19736 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1906 ax-6 1964 ax-7 2004 ax-8 2101 ax-9 2109 ax-12 2167 ax-ext 2699 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 847 df-3an 1087 df-tru 1537 df-fal 1547 df-ex 1775 df-sb 2061 df-clab 2706 df-cleq 2720 df-clel 2806 df-ral 3059 df-rex 3068 df-rab 3430 df-v 3473 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-nul 4324 df-if 4530 df-sn 4630 df-pr 4632 df-op 4636 df-uni 4909 df-br 5149 df-iota 6500 df-fv 6556 df-ov 7423 df-cmn 19737 df-abl 19738 |
This theorem is referenced by: ablinvadd 19762 ablsub2inv 19763 ablsubadd 19764 abladdsub 19767 ablsubaddsub 19769 ablpncan3 19771 ablsub32 19776 ablnnncan 19777 ablsubsub23 19779 eqgabl 19789 subgabl 19791 ablnsg 19802 lsmcomx 19811 qusabl 19820 frgpnabl 19830 imasabl 19831 subrngringnsg 20490 ngplcan 24533 clmnegsubdi2 25045 clmvsubval2 25050 ncvspi 25097 r1pid 26109 abliso 32769 r1plmhm 33280 lindsunlem 33322 cnaddcom 38444 toycom 38445 lflsub 38539 lfladdcom 38544 |
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