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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 7216 enq0tr 7754 ltmul12a 9139 lt2msq1 9164 ledivp1 9182 lemul1ad 9218 lemul2ad 9219 lediv2ad 10058 xaddge0 10217 difelfznle 10476 expubnd 10965 nn0leexp2 11080 expcanlem 11085 expcand 11087 hashmap 11200 swrds1 11368 ccatswrd 11370 pfxfv 11384 swrdccatin1 11425 pfxccatin12lem3 11432 xrmaxaddlem 11953 mertenslemi1 12229 eftlub 12384 dvdsadd 12530 3dvds 12558 divalgmod 12621 bitsfzolem 12648 bitsfzo 12649 bitsmod 12650 bitsinv1lem 12655 gcdzeq 12726 rplpwr 12731 sqgcd 12733 bezoutr 12736 rpmulgcd2 12800 rpdvds 12804 isprm5 12847 divgcdodd 12848 oddpwdclemxy 12874 divnumden 12901 crth 12929 phimullem 12930 coprimeprodsq2 12964 pythagtriplem19 12988 pclemub 12993 pcpre1 12998 pcidlem 13029 pockthlem 13062 prmunb 13068 kerf1ghm 14012 elrhmunit 14344 rrgnz 14437 znunit 14856 xblss2ps 15318 xblss2 15319 metcnpi3 15431 limcimolemlt 15578 limccnp2cntop 15591 dvmulxxbr 15616 dvcoapbr 15621 ltexp2d 15856 pellexlem3 15896 mpodvdsmulf1o 15907 lgsquad2lem2 16004 2lgsoddprmlem1 16027 2sqlem8a 16044 2sqlem8 16045 |
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