Theorem ad4ant14 514

Description: Deduction adding conjuncts to antecedent. (Contributed by Alan Sare, 17-Oct-2017.) (Proof shortened by Wolf Lammen, 14-Apr-2022.)

Hypothesis

Ref	Expression
ad4ant2.1	|- ( ( ph /\ ps ) -> ch )

Assertion

Ref	Expression
ad4ant14	|- ( ( ( ( ph /\ th ) /\ ta ) /\ ps ) -> ch )

Proof of Theorem ad4ant14

Step	Hyp	Ref	Expression
1		ad4ant2.1	. . 3 |- ( ( ph /\ ps ) -> ch )
2	1	adantlr 477	. 2 |- ( ( ( ph /\ th ) /\ ps ) -> ch )
3	2	adantlr 477	1 |- ( ( ( ( ph /\ th ) /\ ta ) /\ ps ) -> ch )

Syntax hints:   -> wi 4   /\ wa 104

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108

This theorem is referenced by:  ad5ant15  521  ad5ant25  524  seqfeq4g  10623  prodmodclem2  11742  prodmodc  11743  zproddc  11744  fprod2d  11788  gcdsupex  12124  gcdsupcl  12125  grpinvalem  13028  gsumwsubmcl  13128  gsumwmhm  13130  subrngintm  13768  plyco  14995  gausslemma2dlem1f1o  15301