Theorem simp2lr 1023

Description: Simplification of conjunction. (Contributed by NM, 9-Mar-2012.)

Assertion

Ref	Expression
simp2lr	|- ((th /\ ((ph /\ ps) /\ ch) /\ ta) -> ps)

Proof of Theorem simp2lr

Step	Hyp	Ref	Expression
1		simplr 731	. 2 |- (((ph /\ ps) /\ ch) -> ps)
2	1	3ad2ant2 977	1 |- ((th /\ ((ph /\ ps) /\ ch) /\ ta) -> ps)

Syntax hints:   -> wi 4   /\ wa 358   /\ w3a 934

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8

This theorem depends on definitions:  df-bi 177  df-an 360  df-3an 936

This theorem is referenced by:  nnpweq  4524  sfin112  4530