Metamath Proof Explorer


Theorem simp32l

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

Ref Expression
Assertion simp32l τηχφψθφ

Proof

Step Hyp Ref Expression
1 simp2l χφψθφ
2 1 3ad2ant3 τηχφψθφ