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| Mirrors > Home > MPE Home > Th. List > mpgbir | Structured version Visualization version GIF version | ||
| Description: Modus ponens on biconditional combined with generalization. (Contributed by NM, 24-May-1994.) (Proof shortened by Stefan Allan, 28-Oct-2008.) |
| Ref | Expression |
|---|---|
| mpgbir.1 | ⊢ (𝜑 ↔ ∀𝑥𝜓) |
| mpgbir.2 | ⊢ 𝜓 |
| Ref | Expression |
|---|---|
| mpgbir | ⊢ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mpgbir.2 | . . 3 ⊢ 𝜓 | |
| 2 | 1 | ax-gen 1827 | . 2 ⊢ ∀𝑥𝜓 |
| 3 | mpgbir.1 | . 2 ⊢ (𝜑 ↔ ∀𝑥𝜓) | |
| 4 | 2, 3 | mpbir 234 | 1 ⊢ 𝜑 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ∀wal 1567 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 |
| This proof depends on definitions: df-bi 210 |
| This theorem is used by: cvjust 2754 eqriv 2757 nfci 2910 abid2f 2952 abid2fOLD 2953 rgen 3078 ssriv 3913 nel0 4301 rab0OLD 4335 ssmin 4926 intab 4937 sndisj 5094 disjxsn 5096 fr0 5629 relssi 5764 dmi 5904 dmep 5906 onfr 6405 funopabeq 6581 isarep2 6634 opabiotafun 6970 fvopab3ig 6994 opabex 7230 caovmo 7662 funmpt3 7691 trom 7890 tz7.44lem1 8420 pwfir 9315 dfsup2 9443 zfregfr 9612 dfom3 9655 dfttrcl2 9732 trcl 9736 tc2 9748 rankf 9809 rankval4 9891 scottabf 9946 uniwun 10832 dfnn2 12355 dfuzi 12797 fzodisj 13835 fzodisjsn 13839 cycsubg 19432 efger 19941 made0 28258 lrrecfr 28338 dfn0s2 28727 ajfuni 31470 funadj 32497 rabexgfGS 33146 abrexdomjm 33154 ballotth 35220 bnj1133 35669 vsmrep 36013 satfv0fun 36226 fmla0xp 36238 dfon3 36750 fnsingle 36777 dfiota3 36781 hftr 37029 tz9.1tco 37367 dfttc3gw 37407 bj-rabtrALT 37940 ismblfin 38688 abrexdom 38773 cllem0 44676 cotrintab 44723 brtrclfv2 44836 snhesn 44895 psshepw 44897 k0004val0 45263 compab 45533 onfrALT 45640 dvcosre 47030 sinnpoly 48049 cfsetssfset 48234 alimp-surprise 51059 |
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