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)