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| Mirrors > Home > ILE Home > Th. List > syl3an | GIF version | ||
| Description: A triple syllogism inference. (Contributed by NM, 13-May-2004.) |
| Ref | Expression |
|---|---|
| syl3an.1 | ⊢ (𝜑 → 𝜓) |
| syl3an.2 | ⊢ (𝜒 → 𝜃) |
| syl3an.3 | ⊢ (𝜏 → 𝜂) |
| syl3an.4 | ⊢ ((𝜓 ∧ 𝜃 ∧ 𝜂) → 𝜁) |
| Ref | Expression |
|---|---|
| syl3an | ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜏) → 𝜁) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl3an.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
| 2 | syl3an.2 | . . 3 ⊢ (𝜒 → 𝜃) | |
| 3 | syl3an.3 | . . 3 ⊢ (𝜏 → 𝜂) | |
| 4 | 1, 2, 3 | 3anim123i 1215 | . 2 ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜏) → (𝜓 ∧ 𝜃 ∧ 𝜂)) |
| 5 | syl3an.4 | . 2 ⊢ ((𝜓 ∧ 𝜃 ∧ 𝜂) → 𝜁) | |
| 6 | 4, 5 | syl 14 | 1 ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜏) → 𝜁) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∧ 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: syl2an3an 1339 funtpg 5430 ftpg 5893 eloprabga 6169 prfidisj 7228 djuenun 7562 addasspig 7691 mulasspig 7693 distrpig 7694 addcanpig 7695 mulcanpig 7696 ltapig 7699 distrnqg 7748 distrnq0 7820 cnegexlem2 8496 zletr 9677 zdivadd 9718 xaddass 10254 iooneg 10373 zltaddlt1le 10393 fzen 10430 fzaddel 10448 fzrev 10474 fzrevral2 10496 fzshftral 10498 fzosubel2 10596 fzonn0p1p1 10614 swrdf 11410 pfxccatin12lem4 11481 resqrexlemover 11759 fisum0diag2 12197 dvdsnegb 12558 muldvds1 12566 muldvds2 12567 dvdscmul 12568 dvdsmulc 12569 dvds2add 12575 dvds2sub 12576 dvdstr 12578 addmodlteqALT 12609 divalgb 12675 ndvdsadd 12681 absmulgcd 12777 rpmulgcd 12786 cncongr2 12865 hashdvds 12982 pythagtriplem1 13027 mulgmodid 13947 nmzsubg 13996 assa2ass 14992 psrbagconf1o 15047 clwwlknccat 16647 |
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