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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 2754 eqriv 2757 nfci 2910 abid2f 2952 abid2fOLD 2953 rgen 3078 ssriv 3935 nel0 4302 rab0OLD 4336 ssmin 4927 intab 4938 sndisj 5095 disjxsn 5097 fr0 5633 relssi 5767 dmi 5905 dmep 5907 onfr 6397 funopabeq 6569 isarep2 6622 opabiotafun 6958 fvopab3ig 6982 opabex 7219 caovmo 7651 trom 7871 tz7.44lem1 8394 pwfir 9286 dfsup2 9414 zfregfr 9583 dfom3 9626 dfttrcl2 9703 trcl 9707 tc2 9719 rankf 9776 rankval4 9849 scottabf 9878 uniwun 10749 dfnn2 12270 dfuzi 12712 fzodisj 13749 fzodisjsn 13753 cycsubg 19336 efger 19845 made0 28128 lrrecfr 28208 dfn0s2 28597 ajfuni 31340 funadj 32367 rabexgfGS 32974 abrexdomjm 32982 ballotth 35049 bnj1133 35498 satfv0fun 35950 fmla0xp 35962 dfon3 36469 fnsingle 36496 dfiota3 36500 hftr 36762 tz9.1tco 37102 dfttc3gw 37142 bj-rabtrALT 37675 ismblfin 38410 abrexdom 38480 cllem0 44406 cotrintab 44454 brtrclfv2 44567 snhesn 44626 psshepw 44628 k0004val0 44994 compab 45265 onfrALT 45372 dvcosre 46740 sinnpoly 47759 cfsetssfset 47944 alimp-surprise 50709 |
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