Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(¬¬((r ∨ r) ↔ ¬¬r) ∧ T ∧ r)

⇒ logic.propositional.idempor

¬(¬¬(r ↔ ¬¬r) ∧ T ∧ r)