Theorem bnj707 32735

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 32687	. . 3 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒 ∧ 𝜃) ↔ ((𝜑 ∧ 𝜓 ∧ 𝜃) ∧ 𝜒))
2	1	simprbi 497	. 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 1086   ∧ w-bnj17 32665

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 206  df-an 397  df-3an 1088  df-bnj17 32666

This theorem is referenced by:  bnj771  32744  bnj998  32937  bnj1001  32939  bnj1006  32940  bnj1053  32956  bnj1121  32965  bnj1030  32967