Theorem bi123impib 40814

Description: 3impib 1112 with the implications of the hypothesis biconditionals. (Contributed by Alan Sare, 6-Nov-2017.)

Hypothesis

Ref	Expression
bi123impib.1	⊢ (𝜑 ↔ ((𝜓 ∧ 𝜒) ↔ 𝜃))

Assertion

Ref	Expression
bi123impib	⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)

Proof of Theorem bi123impib

Step	Hyp	Ref	Expression
1		bi123impib.1	. . 3 ⊢ (𝜑 ↔ ((𝜓 ∧ 𝜒) ↔ 𝜃))
2	1	biimpi 218	. 2 ⊢ (𝜑 → ((𝜓 ∧ 𝜒) ↔ 𝜃))
3	2	bi23impib 40812	1 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)

Syntax hints:   → wi 4   ↔ wb 208   ∧ wa 398   ∧ w3a 1083

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 209  df-an 399  df-3an 1085

This theorem is referenced by: (None)