Theorem mpd3an23 1354

Description: An inference based on modus ponens. (Contributed by NM, 4-Dec-2006.)

Hypotheses

Ref	Expression
mpd3an23.1	⊢ (𝜑 → 𝜓)
mpd3an23.2	⊢ (𝜑 → 𝜒)
mpd3an23.3	⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)

Assertion

Ref	Expression
mpd3an23	⊢ (𝜑 → 𝜃)

Proof of Theorem mpd3an23

Step	Hyp	Ref	Expression
1		id 19	. 2 ⊢ (𝜑 → 𝜑)
2		mpd3an23.1	. 2 ⊢ (𝜑 → 𝜓)
3		mpd3an23.2	. 2 ⊢ (𝜑 → 𝜒)
4		mpd3an23.3	. 2 ⊢ ((𝜑 ∧ 𝜓 ∧ 𝜒) → 𝜃)
5	1, 2, 3, 4	syl3anc 1252	1 ⊢ (𝜑 → 𝜃)

Syntax hints:   → wi 4   ∧ w3a 983

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 985

This theorem is referenced by:  exp0  10732  bcpasc  10955  bccl  10956  pw2dvds  12654  qnumdencoprm  12681  qeqnumdivden  12682  grpinvid  13559  qus0  13738  ghmid  13752  mgpvalg  13852  mgpex  13854  opprex  14002  unitgrpid  14047  qusmul2  14458  psrbaglesuppg  14601  dvef  15366  2lgs  15748