Metamath Proof Explorer


Theorem expdcom

Description: Commuted form of expd . (Contributed by Alan Sare, 18-Mar-2012) Shorten expd . (Revised by Wolf Lammen, 28-Jul-2022)

Ref Expression
Hypothesis expd.1 ( 𝜑 → ( ( 𝜓𝜒 ) → 𝜃 ) )
Assertion expdcom ( 𝜓 → ( 𝜒 → ( 𝜑𝜃 ) ) )

Proof

Step Hyp Ref Expression
1 expd.1 ( 𝜑 → ( ( 𝜓𝜒 ) → 𝜃 ) )
2 1 com12 ( ( 𝜓𝜒 ) → ( 𝜑𝜃 ) )
3 2 ex ( 𝜓 → ( 𝜒 → ( 𝜑𝜃 ) ) )