Theorem 3adant3r 1261

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 1234	. . 3 |- ( ( ch /\ ps /\ ph ) -> th )
3	2	3adant1r 1257	. 2 |- ( ( ( ch /\ ta ) /\ ps /\ ph ) -> th )
4	3	3com13 1234	1 |- ( ( ph /\ ps /\ ( ch /\ ta ) ) -> th )

Syntax hints:   -> wi 4   /\ wa 104   /\ w3a 1004

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 1006

This theorem is referenced by:  addassnqg  7601  mulassnqg  7603  prarloc  7722  ltpopr  7814  ltexprlemfl  7828  ltexprlemfu  7830  addasssrg  7975  axaddass  8091  apmul1  8967  ltmul2  9035  lemul2  9036  dvdscmulr  12380  dvdsmulcr  12381  modremain  12489  ndvdsadd  12491  rpexp12i  12726  xblcntrps  15136  xblcntr  15137