Theorem ad4ant14 518

Description: Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017.) (Proof shortened by Wolf Lammen, 14-Apr-2022.)

Hypothesis

Ref	Expression
ad4ant2.1	⊢ ((𝜑 ∧ 𝜓) → 𝜒)

Assertion

Ref	Expression
ad4ant14	⊢ ((((𝜑 ∧ 𝜃) ∧ 𝜏) ∧ 𝜓) → 𝜒)

Proof of Theorem ad4ant14

Step	Hyp	Ref	Expression
1		ad4ant2.1	. . 3 ⊢ ((𝜑 ∧ 𝜓) → 𝜒)
2	1	adantlr 481	. 2 ⊢ (((𝜑 ∧ 𝜃) ∧ 𝜓) → 𝜒)
3	2	adantlr 481	1 ⊢ ((((𝜑 ∧ 𝜃) ∧ 𝜏) ∧ 𝜓) → 𝜒)

This proof depends on syntax axioms:   → wi 4   ∧ wa 104

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108

This theorem is used by:  ad5ant15  525  ad5ant25  528  seqfeq4g  10990  prodmodclem2  12370  prodmodc  12371  zproddc  12372  fprod2d  12416  gcdsupex  12760  gcdsupcl  12761  grpinvalem  13765  gzsumwsubmcl  13861  gzsumwmhm  13863  gsum2dfilem2  14273  subrngintm  14630  plyco  15997  gausslemma2dlem1f1o  16396