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| Mirrors > Home > ILE Home > Th. List > sylan2br | GIF version | ||
| Description: A syllogism inference. (Contributed by NM, 21-Apr-1994.) |
| Ref | Expression |
|---|---|
| sylan2br.1 | ⊢ (𝜒 ↔ 𝜑) |
| sylan2br.2 | ⊢ ((𝜓 ∧ 𝜒) → 𝜃) |
| Ref | Expression |
|---|---|
| sylan2br | ⊢ ((𝜓 ∧ 𝜑) → 𝜃) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylan2br.1 | . . 3 ⊢ (𝜒 ↔ 𝜑) | |
| 2 | 1 | biimpri 133 | . 2 ⊢ (𝜑 → 𝜒) |
| 3 | sylan2br.2 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜃) | |
| 4 | 2, 3 | sylan2 286 | 1 ⊢ ((𝜓 ∧ 𝜑) → 𝜃) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 ↔ wb 105 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 |
| This theorem is used by: syl2anbr 292 xordc1 1442 exmid1stab 4347 imainss 5206 xpexr2m 5232 funeu2 5406 imadiflem 5463 fnop 5489 ssimaex 5767 isosolem 6033 acexmidlem2 6085 fnovex 6121 cnvoprab 6474 suppssdc 6504 smores3 6568 freccllem 6677 riinerm 6886 pw1fin 7221 enq0sym 7805 peano5nnnn 8265 axcaucvglemres 8272 uzind3 9770 xrltnsym 10212 xsubge0 10300 0fz1 10466 seqf 10922 seq3f1oleml 10974 exp1 11003 expp1 11004 resqrexlemf1 11796 resqrexlemfp1 11797 clim2ser 12128 clim2ser2 12129 isermulc2 12131 summodclem3 12172 fisumss 12184 fsum3cvg3 12188 iserabs 12267 isumshft 12282 isumsplit 12283 geoisum1 12311 geoisum1c 12312 cvgratnnlemnexp 12316 cvgratz 12324 mertenslem2 12328 clim2prod 12331 clim2divap 12332 fprodseq 12375 prodssdc 12381 fprodssdc 12382 effsumlt 12484 efgt1p 12488 gcd0id 12781 nninfctlemfo 12842 lcmgcd 12881 lcmdvds 12882 lcmid 12883 isprm2lem 12919 pcmpt 13151 ballotfilemfc0 13290 ballotfilemfcc 13291 ballotfilemimin 13307 ballotfilemfrcn0 13331 ennnfonelemjn 13351 issgrpd 13786 mulg1 13991 gsumvalfi 14242 srglmhm 14404 srgrmhm 14405 ringlghm 14473 ringrghm 14474 neipsm 15380 xmetpsmet 15595 comet 15725 metrest 15732 expcncf 15835 lgscllem 16331 lgsdir2 16357 lgsdirnn0 16371 lgsdinn0 16372 eupth2lem3lem7fi 16920 cvgcmp2nlemabs 17287 nconstwlpolem 17322 |
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