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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 1201 | . 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 1002 |
| 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 1004 |
| This theorem is referenced by: syl32anc 1279 stoic4b 1475 enq0tr 7637 ltmul12a 9023 lt2msq1 9048 ledivp1 9066 lemul1ad 9102 lemul2ad 9103 lediv2ad 9932 xaddge0 10091 difelfznle 10348 expubnd 10835 nn0leexp2 10949 expcanlem 10954 expcand 10956 swrds1 11221 ccatswrd 11223 pfxfv 11237 swrdccatin1 11278 pfxccatin12lem3 11285 xrmaxaddlem 11792 mertenslemi1 12067 eftlub 12222 dvdsadd 12368 3dvds 12396 divalgmod 12459 bitsfzolem 12486 bitsfzo 12487 bitsmod 12488 bitsinv1lem 12493 gcdzeq 12564 rplpwr 12569 sqgcd 12571 bezoutr 12574 rpmulgcd2 12638 rpdvds 12642 isprm5 12685 divgcdodd 12686 oddpwdclemxy 12712 divnumden 12739 crth 12767 phimullem 12768 coprimeprodsq2 12802 pythagtriplem19 12826 pclemub 12831 pcpre1 12836 pcidlem 12867 pockthlem 12900 prmunb 12906 kerf1ghm 13832 elrhmunit 14162 rrgnz 14253 znunit 14644 xblss2ps 15099 xblss2 15100 metcnpi3 15212 limcimolemlt 15359 limccnp2cntop 15372 dvmulxxbr 15397 dvcoapbr 15402 ltexp2d 15637 mpodvdsmulf1o 15685 lgsquad2lem2 15782 2lgsoddprmlem1 15805 2sqlem8a 15822 2sqlem8 15823 |
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