Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((¬(¬r ∧ ¬r) ↔ (r ∨ F)) ∧ T ∧ r)

⇒ logic.propositional.idempand

¬((¬¬r ↔ (r ∨ F)) ∧ T ∧ r)