Theorem simp12l 1068

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

Assertion

Ref	Expression
simp12l	|- (((ch /\ (ph /\ ps) /\ th) /\ ta /\ et) -> ph)

Proof of Theorem simp12l

Step	Hyp	Ref	Expression
1		simp2l 981	. 2 |- ((ch /\ (ph /\ ps) /\ th) -> ph)
2	1	3ad2ant1 976	1 |- (((ch /\ (ph /\ ps) /\ th) /\ ta /\ et) -> ph)

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:  sfinltfin  4536