Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((r ↔ r) ∧ r ∧ (T ∨ ¬T))

⇒ logic.propositional.nottrue

¬((r ↔ r) ∧ r ∧ (T ∨ F))