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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 | biimpi 158 |
. . 3
|
| 3 | 2 | anim2i 342 |
. 2
|
| 4 | 1 | biimpri 159 |
. . 3
|
| 5 | 4 | anim2i 342 |
. 2
|
| 6 | 3, 5 | impbii 164 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: anbi1i 492 anbi12i 493 an23 496 an4 517 an42 518 anandir 522 3imtr3g 563 oranabs 593 bibi2i 619 xor2 684 rnlem 785 nic-justlem 968 19.27 1110 sb6 1309 3exdistr 1354 4exdistr 1355 eeeanv 1366 2sb5 1377 2sb5rf 1380 sbel2x 1387 eu2 1438 eu3 1439 mo4f 1444 eu5 1451 eu4 1452 euan 1470 2mos 1491 2eu4 1495 2eu6 1497 clelab 1628 r2ex 1738 reu2 1977 reu3 1978 reu4 1981 reu7 1982 sbc8g 2006 dfpss2 2184 dfpss3 2185 difdif 2217 inass 2274 dfss4 2293 dfin2 2295 difin 2296 indi 2302 difin0ss 2384 inssdif0 2385 eluniab 2567 unipr 2569 uniun 2573 uniin 2574 dfiun2g 2640 iunin2 2663 iundif2 2665 iindif2 2666 axrep1 2749 axrep4 2752 notzfaus 2796 eqvinop 2847 opeqsn 2858 opabid 2866 uniuni 2937 ordtri3or 3036 onzsl 3174 findsg 3214 tfindsg 3219 fconstopab 3267 xpundi 3282 elcnv2 3351 cnvuni 3358 dmuni 3376 opelres 3429 dfima3 3463 elima3 3467 imai 3474 asymref2 3497 intirr 3498 rnuni 3516 imainss 3520 ssrnres 3538 rninxp 3539 cores 3556 rnco 3559 coass 3569 dffun2 3583 dffun3 3584 dffun4 3585 dffun5 3586 dffunmof 3587 funeu2 3595 dffun6 3596 dffun8 3598 svrelfun 3617 fncnv 3618 funcnvuni 3621 imadif 3631 fcoi2 3703 fconst 3715 f11 3721 fores 3738 f1o4 3753 f1o5 3754 f1ocnv 3758 fvopab2 3848 eqfnfvf 3855 ffnfvf 3886 fsn2 3893 funiunfv 3923 f1fvf 3932 tfrlem2 3970 dfrdg2 3991 rdglem1 3995 tz7.49 4017 ffnoprval 4072 eqfnoprval 4074 fooprval 4095 2ndconst 4155 foprab2 4177 th3qlem1 4375 mapsnen 4490 xpassen 4504 pw2en 4509 xpmapenlem5 4565 abfii1 4621 abfii2 4622 inf2 4670 axinf 4685 trcl 4707 aceq1 4791 aceq3 4795 aceq4 4796 aceq5lem2 4798 aceq5lem3 4799 aceq5 4802 kmlem3 4829 kmlem4 4830 kmlem14 4840 kmlem15 4841 aceqkm 4843 zorn2lem7 4856 brdom7disj 4866 brdom6disj 4867 cf0 4975 zfcndrep 5031 zfcndinf 5035 distrlem1pr 5192 distrlem5pr 5196 opelreal 5314 elreal 5315 pre-axsup 5356 elnnz 6227 elznn0nn 6230 peano2uz2 6286 nnwof 6485 nnwos 6486 elfzuzb 6502 cau3iri 7005 cbvsumi 7076 clm1i 7167 climcmplem 7227 cvgcmp3cetlem1 7278 cvgcmp3cetlem2 7279 cvgratlem3 7342 elcncf1di 7360 infpn2 7601 infmap2lem1 7671 infmap2 7673 isbasis2g 7701 tgval2 7706 tgval3 7714 tgss3 7727 basgen 7729 subtop 7733 clsval2 7770 cncnp 7863 blfval2 7921 blf 7929 iscau2 8022 xpcn 8061 oprcn 8062 fsumcnlem 8074 bcthlem4 8087 bcthlem12 8095 bcthlem14 8097 bcthlem32 8115 sspval 8466 ubthlem1 8613 spwval2 8737 spwmo 8740 pilem1 8754 axgroth4 8863 grothprim 8866 hlimcauii 9189 ocsh 9239 pjtheui 9318 shscli 9364 h1deoi 9555 h1dei 9556 hommval 9595 hfmmval 9598 nmcopexlem1 10034 nmcopexlem2 10035 nmcfnexlem1 10063 nmcfnexlem2 10064 pjhmopidm 10193 cvbr2 10294 cvnbtwn2 10298 cvnbtwn4 10300 mdsl2i 10333 cvmdi 10335 mdsymlem6 10419 cdj3lem3b 10451 ahypfmbi 10513 eeeeanv 10522 ishgrag 10853 |
| 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 154 df-an 232 |