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| Mirrors > Home > ILE Home > Th. List > syl31anc | GIF version | ||
| Description: Syllogism combined with contraction. (Contributed by NM, 11-Mar-2012.) |
| Ref | Expression |
|---|---|
| sylXanc.1 | ⊢ (𝜑 → 𝜓) |
| sylXanc.2 | ⊢ (𝜑 → 𝜒) |
| sylXanc.3 | ⊢ (𝜑 → 𝜃) |
| sylXanc.4 | ⊢ (𝜑 → 𝜏) |
| syl31anc.5 | ⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜏) → 𝜂) |
| Ref | Expression |
|---|---|
| syl31anc | ⊢ (𝜑 → 𝜂) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sylXanc.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | sylXanc.2 | . . 3 ⊢ (𝜑 → 𝜒) | |
| 3 | sylXanc.3 | . . 3 ⊢ (𝜑 → 𝜃) | |
| 4 | 1, 2, 3 | 3jca 1203 | . 2 ⊢ (𝜑 → (𝜓 ∧ 𝜒 ∧ 𝜃)) |
| 5 | sylXanc.4 | . 2 ⊢ (𝜑 → 𝜏) | |
| 6 | syl31anc.5 | . 2 ⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜏) → 𝜂) | |
| 7 | 4, 5, 6 | syl2anc 411 | 1 ⊢ (𝜑 → 𝜂) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 1004 |
| 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 df-3an 1006 |
| This theorem is referenced by: syl32anc 1281 stoic4b 1477 enq0tr 7654 ltmul12a 9040 lt2msq1 9065 ledivp1 9083 lemul1ad 9119 lemul2ad 9120 lediv2ad 9954 xaddge0 10113 difelfznle 10370 expubnd 10859 nn0leexp2 10973 expcanlem 10978 expcand 10980 swrds1 11250 ccatswrd 11252 pfxfv 11266 swrdccatin1 11307 pfxccatin12lem3 11314 xrmaxaddlem 11822 mertenslemi1 12098 eftlub 12253 dvdsadd 12399 3dvds 12427 divalgmod 12490 bitsfzolem 12517 bitsfzo 12518 bitsmod 12519 bitsinv1lem 12524 gcdzeq 12595 rplpwr 12600 sqgcd 12602 bezoutr 12605 rpmulgcd2 12669 rpdvds 12673 isprm5 12716 divgcdodd 12717 oddpwdclemxy 12743 divnumden 12770 crth 12798 phimullem 12799 coprimeprodsq2 12833 pythagtriplem19 12857 pclemub 12862 pcpre1 12867 pcidlem 12898 pockthlem 12931 prmunb 12937 kerf1ghm 13863 elrhmunit 14194 rrgnz 14285 znunit 14676 xblss2ps 15131 xblss2 15132 metcnpi3 15244 limcimolemlt 15391 limccnp2cntop 15404 dvmulxxbr 15429 dvcoapbr 15434 ltexp2d 15669 mpodvdsmulf1o 15717 lgsquad2lem2 15814 2lgsoddprmlem1 15837 2sqlem8a 15854 2sqlem8 15855 |
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