Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((r ∧ T) ↔ r) ∨ ¬(T ∧ T) ∨ ¬r

⇒ logic.propositional.idempand

¬((r ∧ T) ↔ r) ∨ ¬T ∨ ¬r