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| Description: Commutation is symmetric. Kalmbach 83 p. 22. |
| Ref | Expression |
|---|---|
| comcom.1 |
|
| Ref | Expression |
|---|---|
| comcom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-a2 30 |
. . . . . . . . . 10
| |
| 2 | 1 | ran 71 |
. . . . . . . . 9
|
| 3 | ancom 68 |
. . . . . . . . 9
| |
| 4 | 2, 3 | ax-r2 35 |
. . . . . . . 8
|
| 5 | a5c 113 |
. . . . . . . 8
| |
| 6 | 4, 5 | ax-r2 35 |
. . . . . . 7
|
| 7 | 6 | lan 70 |
. . . . . 6
|
| 8 | comcom.1 |
. . . . . . . . . . . 12
| |
| 9 | 8 | df-c2 125 |
. . . . . . . . . . 11
|
| 10 | df-a 39 |
. . . . . . . . . . . 12
| |
| 11 | anor1 80 |
. . . . . . . . . . . 12
| |
| 12 | 10, 11 | 2or 67 |
. . . . . . . . . . 11
|
| 13 | 9, 12 | ax-r2 35 |
. . . . . . . . . 10
|
| 14 | 13 | ax-r4 36 |
. . . . . . . . 9
|
| 15 | df-a 39 |
. . . . . . . . . 10
| |
| 16 | 15 | ax-r1 34 |
. . . . . . . . 9
|
| 17 | 14, 16 | ax-r2 35 |
. . . . . . . 8
|
| 18 | 17 | ran 71 |
. . . . . . 7
|
| 19 | anass 69 |
. . . . . . 7
| |
| 20 | 18, 19 | ax-r2 35 |
. . . . . 6
|
| 21 | 10 | con2 64 |
. . . . . . 7
|
| 22 | 21 | ran 71 |
. . . . . 6
|
| 23 | 7, 20, 22 | 3tr1 60 |
. . . . 5
|
| 24 | 23 | lor 66 |
. . . 4
|
| 25 | 24 | ax-r1 34 |
. . 3
|
| 26 | ax-a2 30 |
. . . . . 6
| |
| 27 | ancom 68 |
. . . . . . . 8
| |
| 28 | 27 | lor 66 |
. . . . . . 7
|
| 29 | a5b 112 |
. . . . . . 7
| |
| 30 | 28, 29 | ax-r2 35 |
. . . . . 6
|
| 31 | 26, 30 | ax-r2 35 |
. . . . 5
|
| 32 | 31 | df-le1 122 |
. . . 4
|
| 33 | 32 | oml2 433 |
. . 3
|
| 34 | ancom 68 |
. . . 4
| |
| 35 | 27, 34 | 2or 67 |
. . 3
|
| 36 | 25, 33, 35 | 3tr2 61 |
. 2
|
| 37 | 36 | df-c1 124 |
1
|
| Colors of variables: term |
| Syntax hints: |
| This theorem is referenced by: comcom3 436 com3ii 439 comor1 443 comorr2 445 comanr1 446 comanr2 447 fh2 452 com2or 465 nbdi 468 oml4 469 gsth 471 gsth2 472 gt1 474 i3bi 478 df2i3 480 i3lem1 486 comi31 490 lem4 493 i3abs3 506 i3con 533 ud1lem1 542 ud1lem3 544 ud2lem3 547 ud3lem1a 548 ud3lem1c 550 ud3lem3 558 ud4lem1a 559 ud4lem1b 560 ud4lem1c 561 ud4lem1 563 ud4lem3 567 ud5lem1a 568 ud5lem1 571 u4lemaa 585 u4lemana 590 u3lemab 594 u3lemanb 599 comi12 689 i1com 690 comi1 691 u4lemle2 700 u5lembi 707 u12lembi 708 u1lem1 716 u3lem1 718 u5lem1 720 u3lem2 728 u4lem2 729 u5lem2 730 u4lem4 741 u5lem5 747 u5lem6 751 u1lem8 758 u1lem11 762 u3lem13b 772 u3lem15 777 bi1o1a 780 test 784 3vcom 795 3vded21 799 3vded3 801 2oalem1 807 bi3 821 bi4 822 orbi 824 negantlem2 831 elimcons 850 comanblem1 852 mhlem 858 mhlem1 859 marsdenlem1 862 marsdenlem2 863 marsdenlem3 864 mh2 866 mlaconjolem 867 mhcor1 870 govar 876 oau 909 oa23 916 oacom 991 oacom3 993 |
| This theorem was proved from axioms: ax-a1 29 ax-a2 30 ax-a3 31 ax-a5 33 ax-r1 34 ax-r2 35 ax-r4 36 ax-r5 37 ax-r3 421 |
| This theorem depends on definitions: df-b 38 df-a 39 df-t 40 df-f 41 df-le1 122 df-le2 123 df-c1 124 df-c2 125 |