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| Mirrors > Home > MPE Home > Th. List > sylanbr | Structured version Visualization version GIF version | ||
| Description: A syllogism inference. (Contributed by NM, 18-May-1994.) |
| Ref | Expression |
|---|---|
| sylanbr.1 | ⊢ (𝜓 ↔ 𝜑) |
| sylanbr.2 | ⊢ ((𝜓 ∧ 𝜒) → 𝜃) |
| Ref | Expression |
|---|---|
| sylanbr | ⊢ ((𝜑 ∧ 𝜒) → 𝜃) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylanbr.1 | . . 3 ⊢ (𝜓 ↔ 𝜑) | |
| 2 | 1 | biimpri 231 | . 2 ⊢ (𝜑 → 𝜓) |
| 3 | sylanbr.2 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜃) | |
| 4 | 2, 3 | sylan 592 | 1 ⊢ ((𝜑 ∧ 𝜒) → 𝜃) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 |
| This proof depends on definitions: df-bi 210 df-an 402 |
| This theorem is used by: syl2anbr 611 rspc4v 3595 funfv 6972 2mpo0 7670 tfrlem7 8391 omword 8578 isinf 9256 fsuppunbi 9381 axdc3lem2 10529 supsrlem 11196 expclzlem 14226 expgt0 14238 expge0 14241 expge1 14242 swrdnd2 14805 resqrex 15417 rplpwr 16732 4sqlem19 17141 gexcl3 19801 thlle 22003 matunitlindflem2 22995 decpmataa0 23086 neindisj 23435 ptcmplem5 24375 tsmsxplem1 24472 tsmsxplem2 24473 elovolmr 25797 itgsubst 26369 logeftb 26911 logbchbase 27099 nosupbnd1lem5 28069 noinfbnd1lem5 28084 legov 29048 lfuhgr3 29728 unopbd 32617 nmcoplb 32632 nmcfnlb 32656 nmopcoi 32697 an52ds 33052 an62ds 33053 an72ds 33054 an82ds 33055 iocinif 33373 1arithufdlem4 34079 r1plmhm 34141 r1pquslmic 34142 voliune 34862 signstfvneq0 35201 axprALT2 35734 weexenwe 35756 f1omptsnlem 38260 unccur 38527 stoweidlem15 47025 hoiqssbllem3 47634 vonioo 47692 vonicc 47695 gboge9 48862 catprs 50119 |
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