Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(¬T ∨ (r ↔ r)) ∨ ¬(T ∧ r)

⇒ logic.propositional.nottrue

¬(F ∨ (r ↔ r)) ∨ ¬(T ∧ r)