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| Description: Inference from commutative law for logical equivalence. |
| Ref | Expression |
|---|---|
| bicomi.1 |
|
| Ref | Expression |
|---|---|
| bicomi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bicomi.1 |
. . 3
| |
| 2 | 1 | biimpri 243 |
. 2
|
| 3 | 1 | biimpi 236 |
. 2
|
| 4 | 2, 3 | impbii 235 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: bitr2i 308 bitr3i 309 bitr4i 310 syl5bbr 320 syl5rbbr 322 syl6bbr 326 syl6rbbr 327 3imtr4g 333 mtbir 367 con2bii 395 xor3 424 pm5.41 428 pm4.64 436 pm4.63 438 pm4.61 462 anor 517 ianorOLD 519 pm4.53 522 pm4.55 524 pm4.56 525 pm4.57 527 pm4.25 560 pm4.87 656 pm4.24 722 pm4.77 886 pm4.76 987 pm5.17OLD 1028 pm5.63 1068 3ianor 1142 3oran 1144 pm3.2an3 1327 syl3anbr 1421 3an6 1479 nic-dfim 1539 nic-dfneg 1540 sbid 1857 cleljust 2008 sb10f 2026 nne 2299 necon3bbii 2325 necon2abii 2349 necon2bbii 2350 alexeq 2661 clel2 2667 clel4 2670 sbc8g 2748 cbvralcsf 2852 cbvrexcsf 2853 cbvreucsf 2854 cbvrabcsf 2855 un0 3135 in0 3136 ss0b 3140 opth2 3741 uniuni 3976 eusv2OLD 3995 reusv2 4004 onminex 4063 cotr 4452 dfoprab5sf 5209 oarec 5447 domtriord 5756 isfinite2 5902 en3lplem2 6041 sbc3org 6129 iscard3 6283 cardnum 6284 cardinfima 6286 alephiso 6287 aceqkm 6427 brdom7disj 6454 brdom6disj 6455 grp2grp 10341 ssga 10476 hausfillim 11299 lejdii 12086 nmcopexlem1 12578 nmcfnexlem1 12607 mdslle1i 12878 mdslle2i 12879 mdslj1i 12880 mdslj2i 12881 bnj208 13033 bnj184 13035 bnj445 13261 bnj456 13272 bnj467 13283 bnj490 13305 bnj1 13327 bnj3 13329 bnj24 13345 bnj38 13360 bnj43 13364 bnj51 13372 bnj112 13397 bnj115 13399 bnj156 13420 bnj205 13433 bnj612 13494 bnj613 13495 bnj856 13718 bnj858 13720 bnj861 13723 bnj947 13775 bnj971 13789 bnj979 13792 bnj1048 13817 bnj1392 14035 bnj1393 14036 bnj1473 14077 bnj119 14158 bnj121 14160 bnj124 14163 bnj130 14169 bnj153 14176 bnj207 14177 bnj606 14222 bnj581 14223 bnj607 14233 bnj611 14236 bnj965 14275 bnj1000 14293 bnj1040 14317 bnj1049 14323 bnj1070 14330 bnj1134 14356 3an6OLD 14681 dfso2 14711 fundmpss 14714 TFIid 15062 TNid 15065 TTBid 15067 FFBid 15070 nabi1i 15088 nabi2i 15089 negcmpprcal2 15237 vutr 15246 boxeq 15283 notev 15285 notal 15286 albineal 15292 splint 15321 ficli 15324 restidsing 15362 imfstnrelc 15368 omslim 15393 rngop 15479 fopab2g 15480 defse3 15614 qusp 15932 eltpt 15933 rcfpfillem3 15957 limfillem1 15965 grphm 16035 cntrsetlem 16052 algi 16129 dualcat2lem 16184 dualded2lem 16185 dualded 16187 settrcon 16318 tarval2 16320 vtarsuelt 16343 dmsdtriordOLD 16445 trer 16446 alexsublem3 16524 locfindsc 16600 inixp 16807 eropreu 16818 firnfi3 16828 geomcau 16934 lmclim2 16935 heiborlem24 17063 an43 17320 pm10.252 17392 pm10.253 17393 pm10.42 17396 2nexaln 17412 aaanv 17430 pm13.195 17462 2sbc6g 17464 2sbc5g 17465 cbvralcsfOLD 17496 cbvrexcsfOLD 17497 cbvreucsfOLD 17498 cbvrabcsfOLD 17499 en3lpVD 17764 3orbi123VD 17769 sbc3orgVD 17770 undif3VD 17801 isopos 17837 islvol5 18283 elpadd0 18513 osumcllem11 18651 pexmidlem8 18662 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 232 |