Theorem mp3an12i 1272

Description: mp3an 1268 with antecedents in standard conjunction form and with one hypothesis an implication. (Contributed by Alan Sare, 28-Aug-2016.)

Hypotheses

Ref	Expression
mp3an12i.1	|- ph
mp3an12i.2	|- ps
mp3an12i.3	|- ( ch -> th )
mp3an12i.4	|- ( ( ph /\ ps /\ th ) -> ta )

Assertion

Ref	Expression
mp3an12i	|- ( ch -> ta )

Proof of Theorem mp3an12i

Step	Hyp	Ref	Expression
1		mp3an12i.3	. 2 |- ( ch -> th )
2		mp3an12i.1	. . 3 |- ph
3		mp3an12i.2	. . 3 |- ps
4		mp3an12i.4	. . 3 |- ( ( ph /\ ps /\ th ) -> ta )
5	2, 3, 4	mp3an12 1258	. 2 |- ( th -> ta )
6	1, 5	syl 14	1 |- ( ch -> ta )

Syntax hints:   -> wi 4   /\ w3a 919

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 104  ax-ia2 105  ax-ia3 106

This theorem depends on definitions:  df-bi 115  df-3an 921

This theorem is referenced by:  oddp1d2  10290  bezoutlema  10388  bezoutlemb  10389