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| Mirrors > Home > ILE Home > Th. List > biimpar | GIF version | ||
| Description: Inference from a logical equivalence. (Contributed by NM, 3-May-1994.) |
| Ref | Expression |
|---|---|
| biimpa.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| biimpar | ⊢ ((𝜑 ∧ 𝜒) → 𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biimpa.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 2 | 1 | biimprd 158 | . 2 ⊢ (𝜑 → (𝜒 → 𝜓)) |
| 3 | 2 | imp 124 | 1 ⊢ ((𝜑 ∧ 𝜒) → 𝜓) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This theorem depends on definitions: df-bi 117 |
| This theorem is referenced by: exbiri 382 bitr 476 biadanid 622 eqtr 2256 opabss 4190 euotd 4390 wetriext 4719 sosng 4843 xpsspw 4882 brcogw 4944 funimaexglem 5459 funfni 5478 fnco 5486 fnssres 5491 fn0 5498 fnimadisj 5499 fnimaeq0 5500 foco 5621 foimacnv 5652 fvelimab 5753 fvopab3ig 5773 dff3im 5844 dffo4 5847 fmptco 5865 f1eqcocnv 5987 f1ocnv2d 6284 f1o3d 6288 fnexALT 6330 elabreximd 6346 xp1st 6389 xp2nd 6390 tfrlemiubacc 6591 tfri2d 6597 tfr1onlemubacc 6607 tfrcllemubacc 6620 tfri3 6628 ecelqsg 6852 elqsn0m 6867 fidifsnen 7162 pr1or2 7530 recclnq 7749 nq0a0 7814 qreccl 10021 difelfzle 10519 exfzdc 10637 zsupcllemstep 10640 modifeq2int 10801 frec2uzlt2d 10819 zzlesq 11124 fihashgt0 11224 1elfz0hash 11225 lennncl 11302 wrdsymb0 11315 ccatsymb 11348 ccatlid 11352 ccatass 11354 ccatswrd 11420 swrdccat2 11421 ccatpfx 11451 swrdccatfn 11474 swrdccat 11485 caucvgrelemcau 11724 recvalap 11841 fzomaxdiflem 11856 2zsupmax 11970 2zinfmin 11987 fsumparts 12215 ntrivcvgap 12293 fsumdvds 12587 divconjdvds 12594 ndvdssub 12675 rplpwr 12782 dvdssqlem 12785 eucalgcvga 12814 mulgcddvds 12850 isprm2lem 12872 powm2modprm 13009 coprimeprodsq 13014 pythagtriplem11 13031 pythagtriplem13 13033 pcadd2 13098 4sqlem11 13158 grpidd 13680 ismndd 13727 gzsumwmhm 13780 mulgaddcom 13926 resghm 14040 conjnsg 14061 isrngd 14227 isringd 14319 01eq0ring 14469 lspsneq0b 14736 lmodindp1 14737 znf1o 14958 psrgrp 14999 uniopn 15025 ntrval 15134 clsval 15135 neival 15167 restdis 15208 lmbrf 15239 cnpnei 15243 dviaddf 15729 dvimulf 15730 logbgt0b 15991 pellexlem2 16006 perfectlem2 16028 lgslem4 16036 lgsmod 16059 lgsdir2lem2 16062 lgsdir2 16066 lgsne0 16071 lgsmulsqcoprm 16079 lgseisenlem1 16103 2lgsoddprm 16146 2sqlem4 16151 wlk1walkdom 16514 wlkreslem 16533 |
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