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| Mirrors > Home > ILE Home > Th. List > ablcom | Unicode version | ||
| Description: An Abelian group operation is commutative. (Contributed by NM, 26-Aug-2011.) |
| Ref | Expression |
|---|---|
| ablcom.b |
|
| ablcom.p |
|
| Ref | Expression |
|---|---|
| ablcom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ablcmn 13877 |
. 2
| |
| 2 | ablcom.b |
. . 3
| |
| 3 | ablcom.p |
. . 3
| |
| 4 | 2, 3 | cmncom 13888 |
. 2
|
| 5 | 1, 4 | syl3an1 1306 |
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 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-cmn 13872 df-abl 13873 |
| This theorem is referenced by: ablinvadd 13896 ablsub2inv 13897 ablsubadd 13898 abladdsub 13901 ablpncan3 13903 ablsub32 13908 ablnnncan 13909 ablsubsub23 13911 eqgabl 13916 subgabl 13918 ablnsg 13920 ablressid 13921 imasabl 13922 subrngringnsg 14218 |
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