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Mirrors > Home > ILE Home > Th. List > cmnmnd | GIF version |
Description: A commutative monoid is a monoid. (Contributed by Mario Carneiro, 6-Jan-2015.) |
Ref | Expression |
---|---|
cmnmnd | ⊢ (𝐺 ∈ CMnd → 𝐺 ∈ Mnd) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2193 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
2 | eqid 2193 | . . 3 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
3 | 1, 2 | iscmn 13363 | . 2 ⊢ (𝐺 ∈ CMnd ↔ (𝐺 ∈ Mnd ∧ ∀𝑥 ∈ (Base‘𝐺)∀𝑦 ∈ (Base‘𝐺)(𝑥(+g‘𝐺)𝑦) = (𝑦(+g‘𝐺)𝑥))) |
4 | 3 | simplbi 274 | 1 ⊢ (𝐺 ∈ CMnd → 𝐺 ∈ Mnd) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1364 ∈ wcel 2164 ∀wral 2472 ‘cfv 5254 (class class class)co 5918 Basecbs 12618 +gcplusg 12695 Mndcmnd 12997 CMndccmn 13354 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-rab 2481 df-v 2762 df-un 3157 df-sn 3624 df-pr 3625 df-op 3627 df-uni 3836 df-br 4030 df-iota 5215 df-fv 5262 df-ov 5921 df-cmn 13356 |
This theorem is referenced by: cmn32 13374 cmn4 13375 cmn12 13376 cmnmndd 13378 rinvmod 13379 ghmcmn 13397 srgmnd 13463 |
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