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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 13941 |
. 2
| |
| 2 | ablcom.b |
. . 3
| |
| 3 | ablcom.p |
. . 3
| |
| 4 | 2, 3 | cmncom 13952 |
. 2
|
| 5 | 1, 4 | syl3an1 1307 |
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 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-in 3207 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 13936 df-abl 13937 |
| This theorem is referenced by: ablinvadd 13960 ablsub2inv 13961 ablsubadd 13962 abladdsub 13965 ablpncan3 13967 ablsub32 13972 ablnnncan 13973 ablsubsub23 13975 eqgabl 13980 subgabl 13982 ablnsg 13984 ablressid 13985 imasabl 13986 subrngringnsg 14283 |
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