Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((((T ∧ r) ∨ r) ↔ r) ∧ r) ∨ ¬((r ↔ r) ∧ r)

⇒ logic.propositional.truezeroand

¬(((r ∨ r) ↔ r) ∧ r) ∨ ¬((r ↔ r) ∧ r)