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Related theorems GIF version |
| Description: Deduction adding a left conjunct to both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| bid.1 | ⊢ (φ → (ψ ↔ χ)) |
| Ref | Expression |
|---|---|
| anbi2d | ⊢ (φ → ((θ ∧ ψ) ↔ (θ ∧ χ))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bid.1 | . . . 4 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 1 | biimpd 135 | . . 3 ⊢ (φ → (ψ → χ)) |
| 3 | 2 | anim2d 433 | . 2 ⊢ (φ → ((θ ∧ ψ) → (θ ∧ χ))) |
| 4 | 1 | biimprd 136 | . . 3 ⊢ (φ → (χ → ψ)) |
| 5 | 4 | anim2d 433 | . 2 ⊢ (φ → ((θ ∧ χ) → (θ ∧ ψ))) |
| 6 | 3, 5 | impbid 397 | 1 ⊢ (φ → ((θ ∧ ψ) ↔ (θ ∧ χ))) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 ∧ wa 196 |
| This theorem is referenced by: anbi1d 469 bibi2d 470 anbi12d 476 bi2anan9 478 axac 1085 eleq2 1150 eqvinc 1407 moeq3 1432 sbc5g 1450 difeq2 1583 undif4 1744 r19.27zv 1771 raaan 1775 opthg 1899 unieq 1927 biopabd 2101 pocl 2132 so 2152 ordelord 2221 limsuc 2361 xpeq2 2441 vtoclr 2449 opelxpg 2454 opbrop 2472 coeq1 2502 opelco 2509 opelcog 2511 iss 2599 elxp4 2640 elxp5 2641 fununi 2705 fneq2 2719 fneu 2728 fnun 2730 feq3 2750 fcoi1 2765 foeq3 2786 funbrfv 2852 fnopabfv 2858 fvco 2865 fvopab3 2868 fvopab3ig 2869 fvrn 2888 isoeq2 2926 isoeq3 2927 isoini 2938 f1oiso 2942 tfrlem1 2949 tz7.44-1 2966 tz7.44-2 2967 tz7.44-3 2968 rdgeq1 2972 rdgeq2 2973 bioprabd 3025 cbvoprab3v 3030 fnoprval 3042 oprabval 3047 oprabvalig 3048 oprabval3 3052 ertr 3211 elqsi 3228 brecop 3242 ecopoprtrn 3247 th3qlem1 3250 th3qlem2 3251 th3q 3253 domeng 3285 dom2d 3307 xpassen 3344 xpdom2 3345 pw2en 3348 mapxpen 3390 unfilem3 3440 fiint 3445 inf0 3457 scott0 3542 aceq1 3552 aceq0 3553 aceq2 3554 aceq3lem 3555 aceq3 3556 aceq5lem1 3558 aceq6b 3565 ac6 3576 kmlem13 3592 kmlem14 3593 unxpdom 3650 iscard2 3660 cfval 3701 axrepndlem1 3738 axunndlem1 3741 axregnd 3750 axinfndlem1 3751 axacndlem4 3756 axacndlem5 3757 zfcndac 3765 ltsopq 3869 prcdpq 3891 prnmax 3893 genpv 3896 genpelv 3897 genpprecl 3898 genpnnp 3902 genpnmax 3904 distrlem1pr 3921 ltprord 3928 ltexprlem3 3938 ltexprlem4 3939 ltexpri 3943 reclem2pr 3951 ltsosr 3997 mulgt0sr 4008 map2psrpr 4014 suppsr 4016 supsrlem6 4024 ltresr 4052 supre 4054 ltsor 4055 axnegex 4078 axmulgt0 4086 lenltt 4285 lt2addt 4361 addge0t 4362 lesub0t 4374 mulge0t 4375 divgt0t 4402 divge0t 4403 ltrect 4417 lerect 4418 ltdiv23t 4419 le2sqt 4420 crut 4531 uzwo 4605 nnwoOLD 4608 zbtwnre 4619 seqval 4665 sqe11t 4705 lt2sqet 4706 nn0opth2t 4726 sqrval 4729 abs3lemt 4865 clim 4877 clim2 4881 climuni 4884 ruclem12 4896 infxpidmlem2 4934 infmap2lem1 4951 infmap2 4953 norm3lemt 5097 hlim 5108 hlim2 5112 chlim 5139 hlimcaui 5141 hlimuni 5144 ocsh 5164 occllem8 5187 projlem7 5199 projlem20 5212 pjmvalt 5245 shlubt 5355 hosmvalt 5487 hodmvalt 5488 cmbrt 5494 spansncvt 5543 cvbrt 5714 mdbr 5726 atom1d 5750 chrelat2t 5761 atcvat 5771 atcvat2t 5773 mdsymlem5 5780 |
| 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 |