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| Mirrors > Home > ILE Home > Th. List > isabl2 | Unicode version | ||
| Description: The predicate "is an Abelian (commutative) group". (Contributed by NM, 17-Oct-2011.) (Revised by Mario Carneiro, 6-Jan-2015.) | 
| Ref | Expression | 
|---|---|
| iscmn.b | 
 | 
| iscmn.p | 
 | 
| Ref | Expression | 
|---|---|
| isabl2 | 
 | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | isabl 13418 | 
. 2
 | |
| 2 | grpmnd 13139 | 
. . . 4
 | |
| 3 | iscmn.b | 
. . . . . 6
 | |
| 4 | iscmn.p | 
. . . . . 6
 | |
| 5 | 3, 4 | iscmn 13423 | 
. . . . 5
 | 
| 6 | 5 | baib 920 | 
. . . 4
 | 
| 7 | 2, 6 | syl 14 | 
. . 3
 | 
| 8 | 7 | pm5.32i 454 | 
. 2
 | 
| 9 | 1, 8 | bitri 184 | 
1
 | 
| Colors of variables: wff set class | 
| Syntax hints:     | 
| 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 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-ext 2178 | 
| This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ral 2480 df-rex 2481 df-rab 2484 df-v 2765 df-un 3161 df-in 3163 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-br 4034 df-iota 5219 df-fv 5266 df-ov 5925 df-grp 13135 df-cmn 13416 df-abl 13417 | 
| This theorem is referenced by: isabli 13430 invghm 13459 imasabl 13466 | 
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