Theorem e33an 44755

Description: Conjunction form of e33 44754. (Contributed by Alan Sare, 15-Jun-2011.) (Proof modification is discouraged.) (New usage is discouraged.)

Hypotheses

Ref	Expression
e33an.1	⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜃   )
e33an.2	⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜏   )
e33an.3	⊢ ((𝜃 ∧ 𝜏) → 𝜂)

Assertion

Ref	Expression
e33an	⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜂   )

Proof of Theorem e33an

Step	Hyp	Ref	Expression
1		e33an.1	. 2 ⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜃   )
2		e33an.2	. 2 ⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜏   )
3		e33an.3	. . 3 ⊢ ((𝜃 ∧ 𝜏) → 𝜂)
4	3	ex 412	. 2 ⊢ (𝜃 → (𝜏 → 𝜂))
5	1, 2, 4	e33 44754	1 ⊢ (   𝜑   ,   𝜓   ,   𝜒   ▶   𝜂   )

Syntax hints:   → wi 4   ∧ wa 395  (   wvd3 44607

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 207  df-an 396  df-3an 1089  df-vd3 44610

This theorem is referenced by: (None)