Metamath Proof Explorer


Theorem bj-imim21i

Description: Inference associated with bj-imim21 . Its associated inference is syl5 . (Contributed by BJ, 19-Jul-2019)

Ref Expression
Hypothesis bj-imim21i.1 ( 𝜑𝜓 )
Assertion bj-imim21i ( ( 𝜒 → ( 𝜓𝜃 ) ) → ( 𝜒 → ( 𝜑𝜃 ) ) )

Proof

Step Hyp Ref Expression
1 bj-imim21i.1 ( 𝜑𝜓 )
2 bj-imim21 ( ( 𝜑𝜓 ) → ( ( 𝜒 → ( 𝜓𝜃 ) ) → ( 𝜒 → ( 𝜑𝜃 ) ) ) )
3 1 2 ax-mp ( ( 𝜒 → ( 𝜓𝜃 ) ) → ( 𝜒 → ( 𝜑𝜃 ) ) )