Theorem jabtaib

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

	Ref	Expression
Hypothesis	jabtaib.1	$$⊢\left(\phi \wedge \psi \right)$$
Assertion	jabtaib	$$⊢\phi \to \psi$$

Proof

Step	Hyp	Ref	Expression
1		jabtaib.1	$$⊢\left(\phi \wedge \psi \right)$$
2		pm3.4	$$⊢\left(\phi \wedge \psi \right)\to \left(\phi \to \psi \right)$$
3	1 2	ax-mp	$$⊢\phi \to \psi$$