Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > ancom2s | GIF version |
Description: Inference commuting a nested conjunction in antecedent. (Contributed by NM, 24-May-2006.) (Proof shortened by Wolf Lammen, 24-Nov-2012.) |
Ref | Expression |
---|---|
an12s.1 | ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜃) |
Ref | Expression |
---|---|
ancom2s | ⊢ ((𝜑 ∧ (𝜒 ∧ 𝜓)) → 𝜃) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pm3.22 261 | . 2 ⊢ ((𝜒 ∧ 𝜓) → (𝜓 ∧ 𝜒)) | |
2 | an12s.1 | . 2 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜃) | |
3 | 1, 2 | sylan2 280 | 1 ⊢ ((𝜑 ∧ (𝜒 ∧ 𝜓)) → 𝜃) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ wa 102 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 |
This theorem is referenced by: an42s 553 ordsuc 4306 xpexr2m 4782 f1elima 5433 f1imaeq 5435 isosolem 5483 caovlem2d 5713 2ndconst 5863 isotilem 6419 prarloclem4 6688 mulsub 7505 leltadd 7551 divmul24ap 7804 |
Copyright terms: Public domain | W3C validator |