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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 2229 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | eqid 2229 | . . 3 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 3 | 1, 2 | iscmn 13816 | . 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 1395 ∈ wcel 2200 ∀wral 2508 ‘cfv 5314 (class class class)co 5994 Basecbs 13018 +gcplusg 13096 Mndcmnd 13435 CMndccmn 13807 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-rab 2517 df-v 2801 df-un 3201 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3888 df-br 4083 df-iota 5274 df-fv 5322 df-ov 5997 df-cmn 13809 |
| This theorem is referenced by: cmn32 13827 cmn4 13828 cmn12 13829 cmnmndd 13831 rinvmod 13832 ghmcmn 13850 srgmnd 13916 |
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