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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 4345 imainss 5203 xpexr2m 5229 funeu2 5403 imadiflem 5460 fnop 5486 ssimaex 5764 isosolem 6030 acexmidlem2 6082 fnovex 6118 cnvoprab 6470 suppssdc 6500 smores3 6564 freccllem 6673 riinerm 6882 pw1fin 7217 enq0sym 7799 peano5nnnn 8259 axcaucvglemres 8266 uzind3 9759 xrltnsym 10195 xsubge0 10283 0fz1 10449 seqf 10901 seq3f1oleml 10953 exp1 10982 expp1 10983 resqrexlemf1 11774 resqrexlemfp1 11775 clim2ser 12103 clim2ser2 12104 isermulc2 12106 summodclem3 12147 fisumss 12159 fsum3cvg3 12163 iserabs 12242 isumshft 12257 isumsplit 12258 geoisum1 12286 geoisum1c 12287 cvgratnnlemnexp 12291 cvgratz 12299 mertenslem2 12303 clim2prod 12306 clim2divap 12307 fprodseq 12350 prodssdc 12356 fprodssdc 12357 effsumlt 12459 efgt1p 12463 gcd0id 12756 nninfctlemfo 12817 lcmgcd 12856 lcmdvds 12857 lcmid 12858 isprm2lem 12894 pcmpt 13122 ballotfilemfc0 13232 ballotfilemfcc 13233 ballotfilemimin 13249 ballotfilemfrcn0 13273 ennnfonelemjn 13293 issgrpd 13727 mulg1 13932 gsumvalfi 14152 srglmhm 14297 srgrmhm 14298 ringlghm 14366 ringrghm 14367 neipsm 15255 xmetpsmet 15470 comet 15600 metrest 15607 expcncf 15710 lgscllem 16126 lgsdir2 16152 lgsdirnn0 16166 lgsdinn0 16167 eupth2lem3lem7fi 16715 cvgcmp2nlemabs 17081 nconstwlpolem 17115 |
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