Theorem 3imp2 1217

Description: Importation to right triple conjunction. (Contributed by NM, 26-Oct-2006.)

Hypothesis

Ref	Expression
3imp1.1	|- ( ph -> ( ps -> ( ch -> ( th -> ta ) ) ) )

Assertion

Ref	Expression
3imp2	|- ( ( ph /\ ( ps /\ ch /\ th ) ) -> ta )

Proof of Theorem 3imp2

Step	Hyp	Ref	Expression
1		3imp1.1	. . 3 |- ( ph -> ( ps -> ( ch -> ( th -> ta ) ) ) )
2	1	3impd 1216	. 2 |- ( ph -> ( ( ps /\ ch /\ th ) -> ta ) )
3	2	imp 123	1 |- ( ( ph /\ ( ps /\ ch /\ th ) ) -> ta )

Syntax hints:   -> wi 4   /\ wa 103   /\ w3a 973

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106

This theorem depends on definitions:  df-bi 116  df-3an 975

This theorem is referenced by:  ovg  5991  grplcan  12761