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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 10858 nn0leexp2 10972 expcanlem 10977 expcand 10979 swrds1 11249 ccatswrd 11251 pfxfv 11265 swrdccatin1 11306 pfxccatin12lem3 11313 xrmaxaddlem 11821 mertenslemi1 12097 eftlub 12252 dvdsadd 12398 3dvds 12426 divalgmod 12489 bitsfzolem 12516 bitsfzo 12517 bitsmod 12518 bitsinv1lem 12523 gcdzeq 12594 rplpwr 12599 sqgcd 12601 bezoutr 12604 rpmulgcd2 12668 rpdvds 12672 isprm5 12715 divgcdodd 12716 oddpwdclemxy 12742 divnumden 12769 crth 12797 phimullem 12798 coprimeprodsq2 12832 pythagtriplem19 12856 pclemub 12861 pcpre1 12866 pcidlem 12897 pockthlem 12930 prmunb 12936 kerf1ghm 13862 elrhmunit 14193 rrgnz 14284 znunit 14675 xblss2ps 15130 xblss2 15131 metcnpi3 15243 limcimolemlt 15390 limccnp2cntop 15403 dvmulxxbr 15428 dvcoapbr 15433 ltexp2d 15668 mpodvdsmulf1o 15716 lgsquad2lem2 15813 2lgsoddprmlem1 15836 2sqlem8a 15853 2sqlem8 15854 |
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