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	⊢ 𝜓
	jarrii.2	⊢ ( ( 𝜑 → 𝜓 ) → 𝜒 )
Assertion	jarrii	⊢ 𝜒

Proof

Step	Hyp	Ref	Expression
1		jarrii.1	⊢ 𝜓
2		jarrii.2	⊢ ( ( 𝜑 → 𝜓 ) → 𝜒 )
3	1	a1i	⊢ ( 𝜑 → 𝜓 )
4	3 2	ax-mp	⊢ 𝜒