Metamath Proof Explorer


Theorem jabtaib

Description: For when pm3.4 lacks a pm3.4i. (Contributed by Jarvin Udandy, 9-Sep-2020)

Ref Expression
Hypothesis jabtaib.1 ( 𝜑𝜓 )
Assertion jabtaib ( 𝜑𝜓 )

Proof

Step Hyp Ref Expression
1 jabtaib.1 ( 𝜑𝜓 )
2 pm3.4 ( ( 𝜑𝜓 ) → ( 𝜑𝜓 ) )
3 1 2 ax-mp ( 𝜑𝜓 )