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Theorem inot 197

Description: 'Not' introduction. Axiom in1 in iset.mm.

**Assertion**
Ref	Expression
inot	⊦ ((𝜑 → ¬ 𝜑) → ¬ 𝜑)

**Proof of Theorem inot**
Step	Hyp	Ref	Expression

Colors of variables: wff var nilad

Syntax hints: → wim 180 ¬ wnot 186

WARNING: This theorem has an incomplete proof.

This theorem is referenced by: (None)