Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(((r ∧ r) ↔ (T ∧ r)) ∧ r)

⇒ logic.propositional.idempand

¬((r ↔ (T ∧ r)) ∧ r)