Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(T ∧ ¬¬(¬¬r ↔ r) ∧ T ∧ r)

⇒ logic.propositional.notnot

¬(T ∧ ¬¬(r ↔ r) ∧ T ∧ r)