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| Description: Commutative law for conjunction. Theorem *4.3 of [WhiteheadRussell] p. 118. |
| Ref | Expression |
|---|---|
| ancom |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | pm3.27 260 |
. . 3
| |
| 2 | pm3.26 256 |
. . 3
| |
| 3 | 1, 2 | jca 236 |
. 2
|
| 4 | pm3.27 260 |
. . 3
| |
| 5 | pm3.26 256 |
. . 3
| |
| 6 | 4, 5 | jca 236 |
. 2
|
| 7 | 3, 6 | impbi 139 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: ancoms 334 ancomsd 335 anbi1i 368 an12 370 an23 371 anabs5 375 an42 389 bicom 398 andir 457 anbi1d 469 pm4.71r 482 pm5.32ri 490 pm5.32rd 492 xor 500 biass 511 biantrurd 546 consensus 574 rnlem 579 3anrot 586 3ancoma 588 exancom 736 19.29r 753 19.42 775 exan 784 eu1 1019 mooran1 1049 eupickb 1056 2eu3 1069 cleq2tr 1148 r19.28av 1294 r19.29r 1296 r19.42v 1303 ralcom 1312 rexcom 1313 gencbvex 1372 euxfr2 1435 reuxfr2 1579 incom 1636 symdif2 1690 difin0ss 1753 moabex 1868 eqvinop 1901 ordtri4 2235 onpwsuc 2315 elxp2 2443 brinxp 2466 cnvco 2520 dmuni 2538 dfima2 2604 imadmrn 2610 imai 2613 intirr 2628 cnvsn 2636 rnuni 2646 cnvxp 2651 cores 2659 dmco2 2673 fununi 2705 funin 2708 f1cnv 2782 tz6.12-1 2842 fsn 2895 isoini 2938 isowe 2941 tfrlem7 2955 ndmoprcom 3061 oaord 3149 nnmord 3189 mapsnen 3334 map1 3335 xpsnen 3339 xpcomen 3343 pw2en 3348 mapxpen 3390 cp 3547 aceq5lem1 3558 aceq5lem2 3559 aceq5lem3 3560 aceq6b 3565 kmlem3 3582 cf0 3705 genpass 3906 1pr 3911 addcompr 3917 mulcompr 3919 reclem2pr 3951 elreal 4044 divdivdivt 4265 letri3t 4283 lesub0 4341 uzwo2 4606 indstr 4611 znnen 4930 infxpidmlem9 4941 shorth 5176 5oalem2 5545 3oalem2 5553 chrelat 5757 cvexchlem 5759 mdsymlem8 5783 sumdmdi 5785 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 |
| This theorem depends on definitions: df-bi 128 df-an 198 |