Theorem simpr-L2.2b.SH 98

Description: Inference from simpr-L2.2b 97.

Hypothesis

Ref	Expression
simpr-L2.2b.SH.1	⊢ ¬ (𝜑 → ¬ 𝜓)

Assertion

Ref	Expression
simpr-L2.2b.SH	⊢ 𝜓

Proof of Theorem simpr-L2.2b.SH

Step	Hyp	Ref	Expression
1		simpr-L2.2b.SH.1	. 2 ⊢ ¬ (𝜑 → ¬ 𝜓)
2		simpr-L2.2b 97	. 2 ⊢ (¬ (𝜑 → ¬ 𝜓) → 𝜓)
3	1, 2	ax-MP 14	1 ⊢ 𝜓

Syntax hints:  ¬ wff-neg 9   → wff-imp 10

This theorem was proved from axioms:  ax-L1 11  ax-L2 12  ax-L3 13  ax-MP 14

This theorem is referenced by:  mbirev-P2.1b  102  dfbiif-P2.3a  108