Metamath Proof Explorer


Theorem imdistani

Description: Distribution of implication with conjunction. (Contributed by NM, 1-Aug-1994)

Ref Expression
Hypothesis imdistani.1 ( 𝜑 → ( 𝜓𝜒 ) )
Assertion imdistani ( ( 𝜑𝜓 ) → ( 𝜑𝜒 ) )

Proof

Step Hyp Ref Expression
1 imdistani.1 ( 𝜑 → ( 𝜓𝜒 ) )
2 1 anc2li ( 𝜑 → ( 𝜓 → ( 𝜑𝜒 ) ) )
3 2 imp ( ( 𝜑𝜓 ) → ( 𝜑𝜒 ) )