Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((T ∧ r) ↔ r) ∨ ¬(¬¬T ∧ r)

⇒ logic.propositional.truezeroand

¬(r ↔ r) ∨ ¬(¬¬T ∧ r)