Metamath Proof Explorer


Theorem simplbi2comt

Description: Closed form of simplbi2com . (Contributed by Alan Sare, 22-Jul-2012)

Ref Expression
Assertion simplbi2comt φ ψ χ χ ψ φ

Proof

Step Hyp Ref Expression
1 biimpr φ ψ χ ψ χ φ
2 1 expcomd φ ψ χ χ ψ φ