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Mirrors > Home > ILE Home > Th. List > syl3an1 | GIF version |
Description: A syllogism inference. (Contributed by NM, 22-Aug-1995.) |
Ref | Expression |
---|---|
syl3an1.1 | ⊢ (𝜑 → 𝜓) |
syl3an1.2 | ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) |
Ref | Expression |
---|---|
syl3an1 | ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜃) → 𝜏) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl3an1.1 | . . 3 ⊢ (𝜑 → 𝜓) | |
2 | 1 | 3anim1i 1090 | . 2 ⊢ ((𝜑 ∧ 𝜒 ∧ 𝜃) → (𝜓 ∧ 𝜒 ∧ 𝜃)) |
3 | syl3an1.2 | . 2 ⊢ ((𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏) | |
4 | 2, 3 | syl 14 | 1 ⊢ ((𝜑 ∧ 𝜒 ∧ 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: syl3an1b 1171 syl3an1br 1174 wepo 4096 f1ofveu 5500 fovrnda 5644 smoiso 5917 omv 6035 oeiv 6036 nndi 6065 nnmsucr 6067 f1oen2g 6235 f1dom2g 6236 prarloclemarch2 6517 distrnq0 6557 ltprordil 6687 1idprl 6688 1idpru 6689 ltpopr 6693 ltexprlemopu 6701 ltexprlemdisj 6704 ltexprlemfl 6707 ltexprlemfu 6709 ltexprlemru 6710 recexprlemdisj 6728 recexprlemss1l 6733 recexprlemss1u 6734 cnegexlem1 7186 msqge0 7607 mulge0 7610 divnegap 7683 divdiv32ap 7696 divneg2ap 7712 peano2uz 8526 lbzbi 8551 negqmod0 9173 expnlbnd 9373 shftfvalg 9419 |
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