Metamath Proof Explorer


Theorem com52r

Description: Commutation of antecedents. Rotate right twice. (Contributed by Jeff Hankins, 28-Jun-2009)

Ref Expression
Hypothesis com5.1 ( 𝜑 → ( 𝜓 → ( 𝜒 → ( 𝜃 → ( 𝜏𝜂 ) ) ) ) )
Assertion com52r ( 𝜃 → ( 𝜏 → ( 𝜑 → ( 𝜓 → ( 𝜒𝜂 ) ) ) ) )

Proof

Step Hyp Ref Expression
1 com5.1 ( 𝜑 → ( 𝜓 → ( 𝜒 → ( 𝜃 → ( 𝜏𝜂 ) ) ) ) )
2 1 com52l ( 𝜒 → ( 𝜃 → ( 𝜏 → ( 𝜑 → ( 𝜓𝜂 ) ) ) ) )
3 2 com5l ( 𝜃 → ( 𝜏 → ( 𝜑 → ( 𝜓 → ( 𝜒𝜂 ) ) ) ) )