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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 1204 | . 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 1005 |
| 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 1007 |
| This theorem is referenced by: syl32anc 1282 stoic4b 1478 mapfi 7213 enq0tr 7745 ltmul12a 9130 lt2msq1 9155 ledivp1 9173 lemul1ad 9209 lemul2ad 9210 lediv2ad 10048 xaddge0 10207 difelfznle 10465 expubnd 10954 nn0leexp2 11068 expcanlem 11073 expcand 11075 swrds1 11353 ccatswrd 11355 pfxfv 11369 swrdccatin1 11410 pfxccatin12lem3 11417 xrmaxaddlem 11938 mertenslemi1 12214 eftlub 12369 dvdsadd 12515 3dvds 12543 divalgmod 12606 bitsfzolem 12633 bitsfzo 12634 bitsmod 12635 bitsinv1lem 12640 gcdzeq 12711 rplpwr 12716 sqgcd 12718 bezoutr 12721 rpmulgcd2 12785 rpdvds 12789 isprm5 12832 divgcdodd 12833 oddpwdclemxy 12859 divnumden 12886 crth 12914 phimullem 12915 coprimeprodsq2 12949 pythagtriplem19 12973 pclemub 12978 pcpre1 12983 pcidlem 13014 pockthlem 13047 prmunb 13053 kerf1ghm 13980 elrhmunit 14311 rrgnz 14403 znunit 14794 xblss2ps 15256 xblss2 15257 metcnpi3 15369 limcimolemlt 15516 limccnp2cntop 15529 dvmulxxbr 15554 dvcoapbr 15559 ltexp2d 15794 pellexlem3 15834 mpodvdsmulf1o 15845 lgsquad2lem2 15942 2lgsoddprmlem1 15965 2sqlem8a 15982 2sqlem8 15983 |
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