Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(r ↔ r) ∨ F ∨ ¬(r ∧ r)

⇒ logic.propositional.idempand

¬(r ↔ r) ∨ F ∨ ¬r