Theorem 3impdi 1334

Description: Importation inference (undistribute conjunction). (Contributed by NM, 14-Aug-1995.)

Hypothesis

Ref	Expression
3impdi.1	|- ( ( ( ph /\ ps ) /\ ( ph /\ ch ) ) -> th )

Assertion

Ref	Expression
3impdi	|- ( ( ph /\ ps /\ ch ) -> th )

Proof of Theorem 3impdi

Step	Hyp	Ref	Expression
1		3impdi.1	. . 3 |- ( ( ( ph /\ ps ) /\ ( ph /\ ch ) ) -> th )
2	1	anandis 600	. 2 |- ( ( ph /\ ( ps /\ ch ) ) -> th )
3	2	3impb 1230	1 |- ( ( ph /\ ps /\ ch ) -> th )

This proof depends on syntax axioms:   -> wi 4   /\ wa 104   /\ w3a 1009

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

This proof depends on definitions:  df-bi 117  df-3an 1011

This theorem is used by:  ecovdi  6920  ecovidi  6921  distrpig  7700  mulcanenq  7752  mulcanenq0ec  7812  distrnq0  7826  axltadd  8395  ccatlcan  11490  absmulgcd  12794