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| Mirrors > Home > ILE Home > Th. List > syl3an3 | GIF version | ||
| Description: A syllogism inference. (Contributed by NM, 22-Aug-1995.) |
| Ref | Expression |
|---|---|
| syl3an3.1 | ⊢ (𝜑 → 𝜃) |
| syl3an3.2 | ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) |
| Ref | Expression |
|---|---|
| syl3an3 | ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜑) → 𝜏) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | syl3an3.1 | . . 3 ⊢ (𝜑 → 𝜃) | |
| 2 | syl3an3.2 | . . . 4 ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) | |
| 3 | 2 | 3exp 1233 | . . 3 ⊢ (𝜓 → (𝜒 → (𝜃 → 𝜏))) |
| 4 | 1, 3 | syl7 69 | . 2 ⊢ (𝜓 → (𝜒 → (𝜑 → 𝜏))) |
| 5 | 4 | 3imp 1224 | 1 ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜑) → 𝜏) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ w3a 1009 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 |
| This proof depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is used by: syl3an3b 1316 syl3an3br 1319 vtoclgft 2873 ovmpox 6217 ovmpoga 6218 nnanq0 7825 apreim 8933 apsub1 8972 divassap 9022 ltmul2 9188 ind0 9303 xleadd1 10287 xltadd2 10289 elfzo 10566 fzodcel 10570 subcn2 12093 mulcn2 12094 ndvdsp1 12715 gcddiv 12812 lcmneg 12868 mulgaddcom 13998 lspsnss 14790 rnglidlrng 14884 neipsm 15304 opnneip 15309 hmeof1o2 15458 blcntrps 15565 blcntr 15566 neibl 15641 blnei 15642 metss 15644 rpcxpsub 16063 cxpcom 16093 rplogbzexp 16109 konigsbergssiedgwpren 16824 |
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