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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 1828 | . 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 1568 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 |
| This proof depends on definitions: df-bi 210 |
| This theorem is used by: cvjust 2759 eqriv 2762 nfci 2915 abid2f 2957 abid2fOLD 2958 rgen 3083 ssriv 3942 nel0 4309 rab0OLD 4343 ssmin 4934 intab 4945 sndisj 5103 disjxsn 5105 fr0 5641 relssi 5775 dmi 5913 dmep 5915 onfr 6404 funopabeq 6576 isarep2 6629 opabiotafun 6965 fvopab3ig 6989 opabex 7225 caovmo 7657 trom 7877 tz7.44lem1 8398 pwfir 9283 dfsup2 9411 zfregfr 9580 dfom3 9623 dfttrcl2 9700 trcl 9704 tc2 9716 rankf 9773 rankval4 9846 scottabf 9875 uniwun 10740 dfnn2 12261 dfuzi 12703 fzodisj 13739 fzodisjsn 13743 cycsubg 19323 efger 19832 made0 28107 lrrecfr 28187 dfn0s2 28576 ajfuni 31282 funadj 32309 rabexgfGS 32916 abrexdomjm 32924 ballotth 34993 bnj1133 35442 satfv0fun 35900 fmla0xp 35912 dfon3 36419 fnsingle 36446 dfiota3 36450 hftr 36711 tz9.1tco 37051 dfttc3gw 37091 bj-rabtrALT 37624 ismblfin 38369 abrexdom 38439 cllem0 44350 cotrintab 44398 brtrclfv2 44511 snhesn 44570 psshepw 44572 k0004val0 44938 compab 45209 onfrALT 45316 dvcosre 46684 cfsetssfset 47851 alimp-surprise 50615 |
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