Theorem bnj707 34769

Description: ∧-manipulation. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) (New usage is discouraged.)

Hypothesis

Ref	Expression
bnj707.1	⊢ (𝜒 → 𝜏)

Assertion

Ref	Expression
bnj707	⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)

Proof of Theorem bnj707

Step	Hyp	Ref	Expression
1		bnj258 34722	. . 3 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒 ∧ 𝜃) ↔ ((𝜑 ∧ 𝜓 ∧ 𝜃) ∧ 𝜒))
2	1	simprbi 496	. 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜒)
3		bnj707.1	. 2 ⊢ (𝜒 → 𝜏)
4	2, 3	syl 17	1 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒 ∧ 𝜃) → 𝜏)

Syntax hints:   → wi 4   ∧ w3a 1087   ∧ w-bnj17 34700

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-bnj17 34701

This theorem is referenced by:  bnj771  34778  bnj998  34971  bnj1001  34973  bnj1006  34974  bnj1053  34990  bnj1121  34999  bnj1030  35001