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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 1208 | . 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 415 | 1 ⊢ (𝜑 → 𝜂) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ wa 104 ∧ w3a 1009 |
| 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 1011 |
| This theorem is referenced by: syl32anc 1286 stoic4b 1482 mapfi 7255 enq0tr 7795 ltmul12a 9184 lt2msq1 9209 ledivp1 9227 lemul1ad 9263 lemul2ad 9264 lediv2ad 10103 xaddge0 10263 difelfznle 10525 expubnd 11016 nn0leexp2 11131 expcanlem 11136 expcand 11138 hashmap 11251 swrds1 11423 ccatswrd 11425 pfxfv 11439 swrdccatin1 11480 pfxccatin12lem3 11487 xrmaxaddlem 12009 mertenslemi1 12285 eftlub 12440 dvdsadd 12586 3dvds 12614 divalgmod 12677 bitsfzolem 12704 bitsfzo 12705 bitsmod 12706 bitsinv1lem 12711 gcdzeq 12782 rplpwr 12787 sqgcd 12789 bezoutr 12792 rpmulgcd2 12856 rpdvds 12860 isprm5 12903 divgcdodd 12904 oddpwdclemxy 12930 divnumden 12957 crth 12985 phimullem 12986 coprimeprodsq2 13020 pythagtriplem19 13044 pclemub 13049 pcpre1 13054 pcidlem 13085 pockthlem 13118 prmunb 13124 kerf1ghm 14060 elrhmunit 14467 rrgnz 14560 znunit 14977 xblss2ps 15488 xblss2 15489 metcnpi3 15601 limcimolemlt 15748 limccnp2cntop 15761 dvmulxxbr 15786 dvcoapbr 15791 ltexp2d 16027 pellexlem3 16076 mpodvdsmulf1o 16087 lgsquad2lem2 16184 2lgsoddprmlem1 16207 2sqlem8a 16224 2sqlem8 16225 |
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