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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 2231 | . . 3 ⊢ (Base‘𝐺) = (Base‘𝐺) | |
| 2 | eqid 2231 | . . 3 ⊢ (+g‘𝐺) = (+g‘𝐺) | |
| 3 | 1, 2 | iscmn 13941 | . 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 1398 ∈ wcel 2202 ∀wral 2511 ‘cfv 5333 (class class class)co 6028 Basecbs 13143 +gcplusg 13221 Mndcmnd 13560 CMndccmn 13932 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-rab 2520 df-v 2805 df-un 3205 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 df-cmn 13934 |
| This theorem is referenced by: cmn32 13952 cmn4 13953 cmn12 13954 cmnmndd 13956 rinvmod 13957 ghmcmn 13975 srgmnd 14042 |
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