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| Mirrors > Home > ILE Home > Th. List > isabld | GIF version | ||
| Description: Properties that determine an Abelian group. (Contributed by NM, 6-Aug-2013.) |
| Ref | Expression |
|---|---|
| isabld.b | ⊢ (𝜑 → 𝐵 = (Base‘𝐺)) |
| isabld.p | ⊢ (𝜑 → + = (+g‘𝐺)) |
| isabld.g | ⊢ (𝜑 → 𝐺 ∈ Grp) |
| isabld.c | ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) = (𝑦 + 𝑥)) |
| Ref | Expression |
|---|---|
| isabld | ⊢ (𝜑 → 𝐺 ∈ Abel) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isabld.g | . 2 ⊢ (𝜑 → 𝐺 ∈ Grp) | |
| 2 | isabld.b | . . 3 ⊢ (𝜑 → 𝐵 = (Base‘𝐺)) | |
| 3 | isabld.p | . . 3 ⊢ (𝜑 → + = (+g‘𝐺)) | |
| 4 | 1 | grpmndd 13595 | . . 3 ⊢ (𝜑 → 𝐺 ∈ Mnd) |
| 5 | isabld.c | . . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) → (𝑥 + 𝑦) = (𝑦 + 𝑥)) | |
| 6 | 2, 3, 4, 5 | iscmnd 13884 | . 2 ⊢ (𝜑 → 𝐺 ∈ CMnd) |
| 7 | isabl 13874 | . 2 ⊢ (𝐺 ∈ Abel ↔ (𝐺 ∈ Grp ∧ 𝐺 ∈ CMnd)) | |
| 8 | 1, 6, 7 | sylanbrc 417 | 1 ⊢ (𝜑 → 𝐺 ∈ Abel) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ w3a 1004 = wceq 1397 ∈ wcel 2202 ‘cfv 5326 (class class class)co 6017 Basecbs 13081 +gcplusg 13159 Grpcgrp 13582 CMndccmn 13870 Abelcabl 13871 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-rab 2519 df-v 2804 df-un 3204 df-in 3206 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 df-grp 13585 df-cmn 13872 df-abl 13873 |
| This theorem is referenced by: subgabl 13918 ablressid 13921 ringabl 14044 lmodabl 14347 |
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