Theorem an31s 504

Description: Swap two conjuncts in antecedent. (Contributed by NM, 31-May-2006.)

Hypothesis

Ref	Expression
an32s.1	⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒) → 𝜃)

Assertion

Ref	Expression
an31s	⊢ (((𝜒 ∧ 𝜓) ∧ 𝜑) → 𝜃)

Proof of Theorem an31s

Step	Hyp	Ref	Expression
1		an32s.1	. . . 4 ⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒) → 𝜃)
2	1	exp31 346	. . 3 ⊢ (𝜑 → (𝜓 → (𝜒 → 𝜃)))
3	2	com13 74	. 2 ⊢ (𝜒 → (𝜓 → (𝜑 → 𝜃)))
4	3	imp31 243	1 ⊢ (((𝜒 ∧ 𝜓) ∧ 𝜑) → 𝜃)

Syntax hints:   → wi 4   ∧ wa 97

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 is referenced by:  genpassl  6622  genpassu  6623