Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(((r ∧ ¬¬r) ↔ r) ∧ r ∧ T)

⇒ logic.propositional.notnot

¬(((r ∧ r) ↔ r) ∧ r ∧ T)