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Mirrors > Home > ILE Home > Th. List > sylan2b | GIF version |
Description: A syllogism inference. (Contributed by NM, 21-Apr-1994.) |
Ref | Expression |
---|---|
sylan2b.1 | ⊢ (𝜑 ↔ 𝜒) |
sylan2b.2 | ⊢ ((𝜓 ∧ 𝜒) → 𝜃) |
Ref | Expression |
---|---|
sylan2b | ⊢ ((𝜓 ∧ 𝜑) → 𝜃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sylan2b.1 | . . 3 ⊢ (𝜑 ↔ 𝜒) | |
2 | 1 | biimpi 120 | . 2 ⊢ (𝜑 → 𝜒) |
3 | sylan2b.2 | . 2 ⊢ ((𝜓 ∧ 𝜒) → 𝜃) | |
4 | 2, 3 | sylan2 286 | 1 ⊢ ((𝜓 ∧ 𝜑) → 𝜃) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 104 ↔ wb 105 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
This theorem depends on definitions: df-bi 117 |
This theorem is referenced by: syl2anb 291 dcor 935 bm1.1 2162 eqtr3 2197 elnelne1 2451 elnelne2 2452 morex 2921 reuss2 3415 reupick 3419 rabsneu 3665 opabss 4065 triun 4112 poirr 4305 wepo 4357 wetrep 4358 rexxfrd 4461 reg3exmidlemwe 4576 nnsuc 4613 fnfco 5387 fun11iun 5479 fnressn 5699 fvpr1g 5719 fvtp1g 5721 fvtp3g 5723 fvtp3 5726 f1mpt 5767 caovlem2d 6062 offval 6085 dfoprab3 6187 1stconst 6217 2ndconst 6218 poxp 6228 tfrlemisucaccv 6321 tfr1onlemsucaccv 6337 tfrcllemsucaccv 6350 fiintim 6923 addclpi 7321 addnidpig 7330 reapmul1 8546 nnnn0addcl 9200 un0addcl 9203 un0mulcl 9204 zltnle 9293 nn0ge0div 9334 uzind3 9360 uzind4 9582 ltsubrp 9684 ltaddrp 9685 xrlttr 9789 xrltso 9790 xltnegi 9829 xaddnemnf 9851 xaddnepnf 9852 xaddcom 9855 xnegdi 9862 xsubge0 9875 fzind2 10232 qltnle 10239 qbtwnxr 10251 exp3vallem 10514 expp1 10520 expnegap0 10521 expcllem 10524 mulexpzap 10553 expaddzap 10557 expmulzap 10559 hashunlem 10775 shftf 10830 sqrtdiv 11042 mulcn2 11311 summodclem2 11381 fsum3 11386 cvgratz 11531 prodmodclem2 11576 zproddc 11578 prodsnf 11591 dvdsflip 11847 dvdsfac 11856 lcmgcdlem 12067 rpexp1i 12144 hashdvds 12211 hashgcdlem 12228 phisum 12230 pcqcl 12296 pcid 12313 ssnnctlemct 12437 issubmd 12793 grpinvnzcl 12870 mulgneg 12929 mulgnn0z 12937 01eq0ring 13229 lmss 13528 xmetrtri 13658 blssioo 13827 divcnap 13837 dedekindicc 13893 dvidlemap 13942 dvrecap 13959 dveflem 13969 lgsval3 14201 lgsdir2 14216 2sqlem6 14238 bj-bdfindes 14472 bj-findes 14504 |
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