Theorem ad5ant123 1366

Description: Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017.) (Proof shortened by Wolf Lammen, 23-Jun-2022.)

Hypothesis

Ref	Expression
ad5ant.1	⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)

Assertion

Ref	Expression
ad5ant123	⊢ (((((𝜑 ∧ 𝜓) ∧ 𝜒) ∧ 𝜏) ∧ 𝜂) → 𝜃)

Proof of Theorem ad5ant123

Step	Hyp	Ref	Expression
1		ad5ant.1	. . 3 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)
2	1	3expa 1120	. 2 ⊢ (((𝜑 ∧ 𝜓) ∧ 𝜒) → 𝜃)
3	2	ad2antrr 726	1 ⊢ (((((𝜑 ∧ 𝜓) ∧ 𝜒) ∧ 𝜏) ∧ 𝜂) → 𝜃)

Syntax hints:   → wi 4   ∧ wa 399   ∧ w3a 1089

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 210  df-an 400  df-3an 1091

This theorem is referenced by:  zarclsint  31536