Theorem mp3anr3 1336

Description: An inference based on modus ponens. (Contributed by NM, 19-Oct-2007.)

Hypotheses

Ref	Expression
mp3anr3.1	⊢ 𝜃
mp3anr3.2	⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒 ∧ 𝜃)) → 𝜏)

Assertion

Ref	Expression
mp3anr3	⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜏)

Proof of Theorem mp3anr3

Step	Hyp	Ref	Expression
1		mp3anr3.1	. . 3 ⊢ 𝜃
2		mp3anr3.2	. . . 4 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒 ∧ 𝜃)) → 𝜏)
3	2	ancoms 268	. . 3 ⊢ (((𝜓 ∧ 𝜒 ∧ 𝜃) ∧ 𝜑) → 𝜏)
4	1, 3	mp3anl3 1333	. 2 ⊢ (((𝜓 ∧ 𝜒) ∧ 𝜑) → 𝜏)
5	4	ancoms 268	1 ⊢ ((𝜑 ∧ (𝜓 ∧ 𝜒)) → 𝜏)

Syntax hints:   → wi 4   ∧ wa 104   ∧ w3a 978

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108

This theorem depends on definitions:  df-bi 117  df-3an 980

This theorem is referenced by:  rprelogbdiv  14414