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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 6960 2mpo0 7658 tfrlem7 8369 omword 8556 isinf 9234 fsuppunbi 9359 axdc3lem2 10500 supsrlem 11167 expclzlem 14194 expgt0 14206 expge0 14209 expge1 14210 swrdnd2 14772 resqrex 15384 rplpwr 16695 4sqlem19 17102 gexcl3 19762 thlle 21964 matunitlindflem2 22956 decpmataa0 23047 neindisj 23396 ptcmplem5 24336 tsmsxplem1 24433 tsmsxplem2 24434 elovolmr 25758 itgsubst 26330 logeftb 26874 logbchbase 27062 nosupbnd1lem5 28002 noinfbnd1lem5 28017 legov 28981 lfuhgr3 29661 unopbd 32550 nmcoplb 32565 nmcfnlb 32589 nmopcoi 32630 an52ds 32985 an62ds 32986 an72ds 32987 an82ds 32988 iocinif 33306 1arithufdlem4 34012 r1plmhm 34074 r1pquslmic 34075 voliune 34795 signstfvneq0 35135 axprALT2 35664 f1omptsnlem 38179 unccur 38446 stoweidlem15 46947 hoiqssbllem3 47556 vonioo 47614 vonicc 47617 gboge9 48784 catprs 50041 |
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