Metamath Proof Explorer


Theorem simpl33

Description: Simplification of conjunction. (Contributed by NM, 9-Mar-2012) (Proof shortened by Wolf Lammen, 24-Jun-2022)

Ref Expression
Assertion simpl33 θ τ φ ψ χ η χ

Proof

Step Hyp Ref Expression
1 simpl3 φ ψ χ η χ
2 1 3ad2antl3 θ τ φ ψ χ η χ