Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(r ↔ (r ∧ r)) ∨ ¬T ∨ ¬r

⇒ logic.propositional.idempand

¬(r ↔ r) ∨ ¬T ∨ ¬r