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Mirrors > Home > ILE Home > Th. List > syl3an2 | GIF version |
Description: A syllogism inference. (Contributed by NM, 22-Aug-1995.) |
Ref | Expression |
---|---|
syl3an2.1 | ⊢ (𝜑 → 𝜒) |
syl3an2.2 | ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) |
Ref | Expression |
---|---|
syl3an2 | ⊢ ((𝜓 ∧ 𝜑 ∧ 𝜃) → 𝜏) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl3an2.1 | . . 3 ⊢ (𝜑 → 𝜒) | |
2 | syl3an2.2 | . . . 4 ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) | |
3 | 2 | 3exp 1103 | . . 3 ⊢ (𝜓 → (𝜒 → (𝜃 → 𝜏))) |
4 | 1, 3 | syl5 28 | . 2 ⊢ (𝜓 → (𝜑 → (𝜃 → 𝜏))) |
5 | 4 | 3imp 1098 | 1 ⊢ ((𝜓 ∧ 𝜑 ∧ 𝜃) → 𝜏) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ w3a 885 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 99 ax-ia2 100 ax-ia3 101 |
This theorem depends on definitions: df-bi 110 df-3an 887 |
This theorem is referenced by: syl3an2b 1172 syl3an2br 1175 syl3anl2 1184 nndi 6065 nnmass 6066 prarloclemarch2 6517 1idprl 6688 1idpru 6689 recexprlem1ssl 6731 recexprlem1ssu 6732 msqge0 7607 mulge0 7610 divsubdirap 7684 divdiv32ap 7696 peano2uz 8526 fzoshftral 9094 expdivap 9305 redivap 9474 imdivap 9481 absdiflt 9688 absdifle 9689 |
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