| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 9763 xrltnsym 10205 xsubge0 10293 0fz1 10459 seqf 10914 seq3f1oleml 10966 exp1 10995 expp1 10996 resqrexlemf1 11788 resqrexlemfp1 11789 clim2ser 12119 clim2ser2 12120 isermulc2 12122 summodclem3 12163 fisumss 12175 fsum3cvg3 12179 iserabs 12258 isumshft 12273 isumsplit 12274 geoisum1 12302 geoisum1c 12303 cvgratnnlemnexp 12307 cvgratz 12315 mertenslem2 12319 clim2prod 12322 clim2divap 12323 fprodseq 12366 prodssdc 12372 fprodssdc 12373 effsumlt 12475 efgt1p 12479 gcd0id 12772 nninfctlemfo 12833 lcmgcd 12872 lcmdvds 12873 lcmid 12874 isprm2lem 12910 pcmpt 13142 ballotfilemfc0 13281 ballotfilemfcc 13282 ballotfilemimin 13298 ballotfilemfrcn0 13322 ennnfonelemjn 13342 issgrpd 13776 mulg1 13981 gsumvalfi 14201 srglmhm 14346 srgrmhm 14347 ringlghm 14415 ringrghm 14416 neipsm 15304 xmetpsmet 15519 comet 15649 metrest 15656 expcncf 15759 lgscllem 16224 lgsdir2 16250 lgsdirnn0 16264 lgsdinn0 16265 eupth2lem3lem7fi 16813 cvgcmp2nlemabs 17179 nconstwlpolem 17213 |
| Copyright terms: Public domain | W3C validator |