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Related theorems GIF version |
| Description: Deduction adding a consequent to both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| bid.1 | ⊢ (φ → (ψ ↔ χ)) |
| Ref | Expression |
|---|---|
| imbi1d | ⊢ (φ → ((ψ → θ) ↔ (χ → θ))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bid.1 | . . . 4 ⊢ (φ → (ψ ↔ χ)) | |
| 2 | 1 | negbid 610 | . . 3 ⊢ (φ → (¬ ψ ↔ ¬ χ)) |
| 3 | 2 | imbi2d 611 | . 2 ⊢ (φ → ((¬ θ → ¬ ψ) ↔ (¬ θ → ¬ χ))) |
| 4 | pm4.1 164 | . 2 ⊢ ((ψ → θ) ↔ (¬ θ → ¬ ψ)) | |
| 5 | pm4.1 164 | . 2 ⊢ ((χ → θ) ↔ (¬ θ → ¬ χ)) | |
| 6 | 3, 4, 5 | 3bitr4g 554 | 1 ⊢ (φ → ((ψ → θ) ↔ (χ → θ))) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 2 → wi 3 ↔ wb 146 |
| This theorem is referenced by: bibi2d 617 imbi1 622 imbi12d 625 pm5.33 649 con3th 765 drsb1 1174 ax11v2 1214 ax11inda 1370 rgen2a 1697 ralcom2 1774 raleq1f 1781 alexeq 1882 mo2icl 1920 sbcth2 1979 sbc19.21g 1984 ra4sbc 1994 r19.37zv 2348 ssuni 2518 intmin4 2555 trel 2683 ssexg 2717 dtruALT 2744 opth2 2796 pocl 2840 so 2860 onminex 3016 ordunisuc2 3111 dfom2 3129 findsg 3153 tfindsg 3158 tfindsg2 3159 vtoclr 3207 fun11 3558 funimass4 3758 f1fv 3869 caoprcan 4050 oaabs 4245 ertr 4267 ecoptocl 4296 ecopoprtrn 4304 dom2d 4394 unifi 4541 fiint 4543 supmo 4559 supub 4563 suplub 4564 supmaxlem 4571 suppr 4573 supsnALT 4575 karden 4709 aceq1 4712 zorn2lem1 4771 iscard2 4837 axrepndlem2 4928 axregndlem2 4938 indpi 5017 ltsopq 5058 prcdpq 5080 prlem934 5122 supexpr 5146 ltsosr 5186 suppsr 5205 supsrlem6 5213 supsr 5214 supre 5243 ltsor 5244 prodgt0 5785 prodgt0t 5792 prodge0t 5794 lbinfm 6005 infm3 6011 infmsup 6025 xrsupsslem 6033 xrinfmsslem 6034 supxr 6038 primet 6152 raluz 6387 fz1sbct 6462 sqrlem20 6637 abs3lemt 6859 seq1bnd 6862 cau2 6865 cau3i 6866 cau3ir 6867 cau5i 6869 cvg1 6873 cvg3 6875 cvganz 6876 clm3 7032 clm4 7033 climconst 7047 climshft 7057 climaddlem3 7069 climmullem8 7080 caucvglem2 7111 caucvglem5 7114 serzf0 7122 ser1f0 7123 ser1clim0 7126 cvgcmp3cetlem2 7142 cvgcmp3cet 7143 expcnvlem1 7179 expcnvlem6 7184 elcncf1d 7222 ivthlem6 7238 ivthlem7 7239 ivthlem6OLD 7247 ivthlem7OLD 7248 efaddlem25 7321 islp2 7707 cncnplem3 7736 metcnpi3 7854 metcnpi4 7855 metcni2 7857 cncfmet 7867 lmconst 7896 lmnn 7897 caun0 7907 metcld 7929 metcnp4 7932 xplm 7937 xpcn 7938 iscms2lem4 7954 isnvlem 8193 nvi 8197 nmcnilem 8300 va1cnlem 8307 sm1cnilem 8309 blocni 8424 spwval2 8610 spwpr2 8615 efifolem3 8674 norm3lemt 8974 chlim 9059 hlim0 9060 projlem20 9160 pjth 9188 omlsi 9200 eigortht 9721 0cnop 9860 0cnfn 9861 idcnop 9862 lnopcon 9919 lnfncon 9946 nlelch 9950 stcltr1 10157 elat2 10223 ghomf1olem 10352 fillsb 10494 isded 10585 dedi 10586 iscat 10603 cati 10604 ismona 10651 ismonb 10652 imonclem 10655 |
| 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 147 df-an 225 |