Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((¬¬r ↔ r) ∧ ((T ∧ r) ∨ (T ∧ r)))

⇒ logic.propositional.notnot

¬((r ↔ r) ∧ ((T ∧ r) ∨ (T ∧ r)))