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| Description: Introduce a left conjunct to both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| bi.aa |
|
| Ref | Expression |
|---|---|
| anbi2i |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bi.aa |
. . . 4
| |
| 2 | 1 | biimp 133 |
. . 3
|
| 3 | 2 | anim2i 270 |
. 2
|
| 4 | 1 | biimpr 134 |
. . 3
|
| 5 | 4 | anim2i 270 |
. 2
|
| 6 | 3, 5 | impbi 139 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: anbi1i 368 anbi12i 369 an23 371 an4 388 an42 389 anandir 393 3imtr3g 425 bibi2i 460 biass 511 rnlem 579 19.27 750 3exdistr 970 4exdistr 971 eeeanv 981 sbel2x 995 eu2 1023 eu3 1024 mo4f 1028 eu5 1035 eu4 1036 euanv 1053 2eu4 1070 axinf 1084 clelab 1187 sbabel 1189 r2ex 1241 reu2 1338 reu4 1340 zfrep2 1475 dfpss2 1557 dfpss3 1558 difdif 1595 inass 1650 dfss4 1667 dfin2 1669 difin 1670 indi 1676 difin0ss 1753 inssdif0 1754 eqvinop 1901 eluniab 1926 unpr 1930 uniun 1934 uniin 1935 dfiun2 2014 iunin2 2030 iundif2 2032 iindif2 2033 opabid 2099 so 2152 ordtri3or 2230 onzsl 2367 fconstopab 2448 xpundi 2461 elcnv2 2515 cnvuni 2521 dmuni 2538 opelres 2579 dfima3 2605 elima3 2608 imai 2613 intirr 2628 rnuni 2646 imainss 2649 cores 2659 coass 2667 dffun2 2674 dffun3 2675 dffun4 2676 dffun5 2677 dffunmof 2678 funeu2 2686 dffun6 2687 funcnvuni 2706 imadif 2714 fcoi2 2766 fconst 2774 f11 2780 fores 2794 f1o4 2807 f1o5 2808 f1ocnv 2811 fvopab2 2878 cleqfvf 2881 fsn2 2896 f1fvf 2917 tfrlem2 2950 rdglem1 2975 ffnoprval 3041 th3qlem1 3250 mapsnen 3334 xpassen 3344 pw2en 3348 xpmapenlem5 3395 inf0 3457 inf2 3459 trcl 3489 aceq1 3552 aceq3 3556 aceq4 3557 aceq5lem2 3559 aceq5lem3 3560 aceq5 3563 kmlem3 3582 kmlem4 3583 kmlem14 3593 kmlem15 3594 cf0 3705 zfcndrep 3760 zfcndinf 3764 elni 3798 distrlem1pr 3921 distrlem5pr 3925 opelreal 4043 elreal 4044 axsup 4088 elnnz 4572 elznn0nn 4575 peano2uz 4602 nnwof 4609 nnwos 4610 infmap2lem1 4951 infmap2 4953 hlimcaui 5141 ocsh 5164 pjthu 5241 pjthu2 5242 shscl 5282 h1deot 5454 h1det 5455 cvbr2t 5715 cvnbtwn2t 5719 cvnbtwn4t 5721 mdsymlem6 5781 |
| 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 |