Theorem 3adant3r 1259

Description: Deduction adding a conjunct to antecedent. (Contributed by NM, 8-Jan-2006.)

Hypothesis

Ref	Expression
3adant1l.1	|- ( ( ph /\ ps /\ ch ) -> th )

Assertion

Ref	Expression
3adant3r	|- ( ( ph /\ ps /\ ( ch /\ ta ) ) -> th )

Proof of Theorem 3adant3r

Step	Hyp	Ref	Expression
1		3adant1l.1	. . . 4 |- ( ( ph /\ ps /\ ch ) -> th )
2	1	3com13 1232	. . 3 |- ( ( ch /\ ps /\ ph ) -> th )
3	2	3adant1r 1255	. 2 |- ( ( ( ch /\ ta ) /\ ps /\ ph ) -> th )
4	3	3com13 1232	1 |- ( ( ph /\ ps /\ ( ch /\ ta ) ) -> th )

Syntax hints:   -> wi 4   /\ wa 104   /\ w3a 1002

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 depends on definitions:  df-bi 117  df-3an 1004

This theorem is referenced by:  addassnqg  7592  mulassnqg  7594  prarloc  7713  ltpopr  7805  ltexprlemfl  7819  ltexprlemfu  7821  addasssrg  7966  axaddass  8082  apmul1  8958  ltmul2  9026  lemul2  9027  dvdscmulr  12371  dvdsmulcr  12372  modremain  12480  ndvdsadd  12482  rpexp12i  12717  xblcntrps  15127  xblcntr  15128