Theorem e11an 37935

Description: Conjunction form of e11 37934. (Contributed by Alan Sare, 15-Jun-2011.) (Proof modification is discouraged.) (New usage is discouraged.)

Hypotheses

Ref	Expression
e11an.1	⊢ (   𝜑   ▶   𝜓   )
e11an.2	⊢ (   𝜑   ▶   𝜒   )
e11an.3	⊢ ((𝜓 ∧ 𝜒) → 𝜃)

Assertion

Ref	Expression
e11an	⊢ (   𝜑   ▶   𝜃   )

Proof of Theorem e11an

Step	Hyp	Ref	Expression
1		e11an.1	. 2 ⊢ (   𝜑   ▶   𝜓   )
2		e11an.2	. 2 ⊢ (   𝜑   ▶   𝜒   )
3		e11an.3	. . 3 ⊢ ((𝜓 ∧ 𝜒) → 𝜃)
4	3	ex 449	. 2 ⊢ (𝜓 → (𝜒 → 𝜃))
5	1, 2, 4	e11 37934	1 ⊢ (   𝜑   ▶   𝜃   )

Syntax hints:   → wi 4   ∧ wa 383  (   wvd1 37806

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 196  df-an 385  df-vd1 37807

This theorem is referenced by: (None)