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Related theorems GIF version |
| Description: An inference from a nested biconditional, related to modus ponens. |
| Ref | Expression |
|---|---|
| mpbiri.min | ⊢ χ |
| mpbiri.maj | ⊢ (φ → (ψ ↔ χ)) |
| Ref | Expression |
|---|---|
| mpbiri | ⊢ (φ → ψ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpbiri.min | . 2 ⊢ χ | |
| 2 | mpbiri.maj | . . 3 ⊢ (φ → (ψ ↔ χ)) | |
| 3 | 2 | biimprd 136 | . 2 ⊢ (φ → (χ → ψ)) |
| 4 | 1, 3 | mpi 44 | 1 ⊢ (φ → ψ) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 |
| This theorem is referenced by: dedt 572 rgen2 1248 class2set 1747 dedth 1784 dedth2v 1785 dedth3v 1786 elpw2g 1803 snidg 1828 sssn 1852 snsspr 1853 snex 1859 moabex 1868 preqr1 1872 pwpw0 1883 prex 1892 opth 1898 copsexg 1902 opprc1b 1906 opprc3 1908 euuni 1954 reucl 1957 reuuni3 1958 syl6eqbr 2092 elopab 2110 supub 2160 suplub 2161 onprc 2240 ordeleqon 2241 onint0 2262 ord0eln0 2278 nsuceq0 2306 ordunisuc 2339 0elsuc 2340 onuninsuc 2356 onun 2358 limsuc 2361 nlimsuc 2363 unizlim 2364 orduninsuc 2365 ordzsl 2366 onzsl 2367 limomss 2378 limom 2387 peano5 2394 tfinds 2401 opelxpex 2445 0nelxp 2475 relsn 2485 iss 2599 dfrel2 2660 coi1 2665 fn0 2739 zfrep6 2744 f00 2773 fconst 2774 f1o00 2823 fnopabfv 2858 fsn 2895 fvi 2900 fconst2 2902 fconstfv 2903 canth 2945 tfrlem6 2954 oprabval3 3052 ndmoprcl 3058 caoprmo 3084 oesuc 3134 omcl 3139 oecl 3140 oawordeulem 3156 oen0 3165 nnmcl 3173 ecopoprdm 3245 map0e 3266 mapsn 3269 en0 3328 en1 3331 xpsnen 3339 pw2en 3348 sbthlem2 3350 sbthlem4 3352 sbthlem5 3353 mapxpen 3390 xpmapenlem5 3395 nneneq 3408 php3 3411 sucprcreg 3451 inf0 3457 inf3lemd 3463 inf3lem6 3469 trcl 3489 r1tr 3498 r1ord 3499 r1val1 3502 rankon 3515 rankr1 3518 scottex 3541 scott0 3542 bnd2 3549 ac6lem 3575 numth2 3600 fodomb 3615 cardval 3633 oncard 3636 cardcard 3655 cardlim 3657 ondomon 3662 cardprc 3667 alephon 3671 alephcard 3673 alephordlem1 3677 cardaleph 3690 cardalephex 3691 cfub 3703 cardcf 3706 cflecard 3707 cfle 3708 cfsuc 3709 axpowndlem3 3745 indpi 3828 distrpqlem 3860 recclpq 3866 1pr 3911 ltsopr 3930 prlem934b 3932 recexpr 3954 1ne0sr 3999 0idsr 4000 00sr 4002 recexsrlem 4006 leidt 4293 eqneg 4378 posex 4422 nn1suc 4435 nn0subt 4587 znegclt 4588 elnn0nn 4593 zltp1let 4597 nn0ind 4612 elq 4629 sqr0 4730 sqrlem6 4736 sqrsqid 4766 sqr2irrlem1 4777 replimt 4798 reim0 4809 ruclem36 4920 ruclem37 4921 infxpidmlem7 4939 infmap2 4953 hsn0elch 5155 ocsh 5164 omlsilem 5249 pjoc1 5268 hsupunss 5314 spanss2 5315 shjshsel 5413 cmbr4 5510 pjssge0 5573 ho1 5613 pj3 5660 stge1 5679 stle0 5680 mdsym 5784 sumdmd 5787 |
| 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 |