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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 7647 ltmul12a 9033 lt2msq1 9058 ledivp1 9076 lemul1ad 9112 lemul2ad 9113 lediv2ad 9947 xaddge0 10106 difelfznle 10363 expubnd 10851 nn0leexp2 10965 expcanlem 10970 expcand 10972 swrds1 11242 ccatswrd 11244 pfxfv 11258 swrdccatin1 11299 pfxccatin12lem3 11306 xrmaxaddlem 11814 mertenslemi1 12089 eftlub 12244 dvdsadd 12390 3dvds 12418 divalgmod 12481 bitsfzolem 12508 bitsfzo 12509 bitsmod 12510 bitsinv1lem 12515 gcdzeq 12586 rplpwr 12591 sqgcd 12593 bezoutr 12596 rpmulgcd2 12660 rpdvds 12664 isprm5 12707 divgcdodd 12708 oddpwdclemxy 12734 divnumden 12761 crth 12789 phimullem 12790 coprimeprodsq2 12824 pythagtriplem19 12848 pclemub 12853 pcpre1 12858 pcidlem 12889 pockthlem 12922 prmunb 12928 kerf1ghm 13854 elrhmunit 14184 rrgnz 14275 znunit 14666 xblss2ps 15121 xblss2 15122 metcnpi3 15234 limcimolemlt 15381 limccnp2cntop 15394 dvmulxxbr 15419 dvcoapbr 15424 ltexp2d 15659 mpodvdsmulf1o 15707 lgsquad2lem2 15804 2lgsoddprmlem1 15827 2sqlem8a 15844 2sqlem8 15845 |
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