Theorem 3impib 1149

Description: Importation to triple conjunction. (Contributed by NM, 13-Jun-2006.)

Hypothesis

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

Assertion

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

Proof of Theorem 3impib

Step	Hyp	Ref	Expression
1		3impib.1	. . 3 |- (ph -> ((ps /\ ch) -> th))
2	1	exp3a 425	. 2 |- (ph -> (ps -> (ch -> th)))
3	2	3imp 1145	1 |- ((ph /\ ps /\ ch) -> th)

Syntax hints:   -> wi 4   /\ wa 358   /\ w3a 934

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 177  df-an 360  df-3an 936

This theorem is referenced by:  mob  3019  eqreu  3029  dedth3h  3706  peano5  4410  ncfinraise  4482  ncfinlower  4484  nnpweq  4524  spfininduct  4541  clos1induct  5881  3ecoptocl  5999  sbthlem2  6205