Theorem simp13 1024

Description: Simplification of doubly triple conjunction. (Contributed by NM, 17-Nov-2011.)

Assertion

Ref	Expression
simp13	|- ( ( ( ph /\ ps /\ ch ) /\ th /\ ta ) -> ch )

Proof of Theorem simp13

Step	Hyp	Ref	Expression
1		simp3 994	. 2 |- ( ( ph /\ ps /\ ch ) -> ch )
2	1	3ad2ant1 1013	1 |- ( ( ( ph /\ ps /\ ch ) /\ th /\ ta ) -> ch )

Syntax hints:   -> wi 4   /\ w3a 973

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107

This theorem depends on definitions:  df-bi 116  df-3an 975

This theorem is referenced by:  simpl13  1069  simpr13  1078  simp113  1123  simp213  1132  simp313  1141  funtpg  5249  dvdsgcd  11967  coprimeprodsq  12211  pythagtriplem4  12222  pythagtriplem13  12230  pythagtriplem14  12231  pythagtriplem16  12233  pythagtrip  12237