Theorem jarrii

Description: Inference associated with jarri . A consequence of ax-mp and ax-1 . (Contributed by SN, 14-Oct-2025)

	Ref	Expression
Hypotheses	jarrii.1	$$⊢\psi$$
	jarrii.2	$$⊢\left(\phi \to \psi \right)\to \chi$$
Assertion	jarrii	$$⊢\chi$$

Proof

Step	Hyp	Ref	Expression
1		jarrii.1	$$⊢\psi$$
2		jarrii.2	$$⊢\left(\phi \to \psi \right)\to \chi$$
3	1	a1i	$$⊢\phi \to \psi$$
4	3 2	ax-mp	$$⊢\chi$$