Theorem impl 380

Description: Export a wff from a left conjunct. (Contributed by Mario Carneiro, 9-Jul-2014.)

Hypothesis

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

Assertion

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

Proof of Theorem impl

Step	Hyp	Ref	Expression
1		impl.1	. . 3 |- ( ph -> ( ( ps /\ ch ) -> th ) )
2	1	expd 258	. 2 |- ( ph -> ( ps -> ( ch -> th ) ) )
3	2	imp31 256	1 |- ( ( ( ph /\ ps ) /\ ch ) -> th )

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:  sbc2iedv  3124  csbie2t  3196  foco2  5962  erth  6858  distrlem1prl  7955  distrlem1pru  7956  uz11  9960  elpq  10065  divgcdcoprm0  12903  cncongr1  12905  prmpwdvds  13162  ballotfilemimin  13306  issgrpd  13785  dfgrp3mlem  13961  efltlemlt  16017  clwwlkext2edg  16885