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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 7227 enq0tr 7765 ltmul12a 9154 lt2msq1 9179 ledivp1 9197 lemul1ad 9233 lemul2ad 9234 lediv2ad 10073 xaddge0 10233 difelfznle 10494 expubnd 10985 nn0leexp2 11100 expcanlem 11105 expcand 11107 hashmap 11220 swrds1 11388 ccatswrd 11390 pfxfv 11404 swrdccatin1 11445 pfxccatin12lem3 11452 xrmaxaddlem 11973 mertenslemi1 12249 eftlub 12404 dvdsadd 12550 3dvds 12578 divalgmod 12641 bitsfzolem 12668 bitsfzo 12669 bitsmod 12670 bitsinv1lem 12675 gcdzeq 12746 rplpwr 12751 sqgcd 12753 bezoutr 12756 rpmulgcd2 12820 rpdvds 12824 isprm5 12867 divgcdodd 12868 oddpwdclemxy 12894 divnumden 12921 crth 12949 phimullem 12950 coprimeprodsq2 12984 pythagtriplem19 13008 pclemub 13013 pcpre1 13018 pcidlem 13049 pockthlem 13082 prmunb 13088 kerf1ghm 14030 elrhmunit 14425 rrgnz 14518 znunit 14936 xblss2ps 15398 xblss2 15399 metcnpi3 15511 limcimolemlt 15658 limccnp2cntop 15671 dvmulxxbr 15696 dvcoapbr 15701 ltexp2d 15936 pellexlem3 15976 mpodvdsmulf1o 15987 lgsquad2lem2 16084 2lgsoddprmlem1 16107 2sqlem8a 16124 2sqlem8 16125 |
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