Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(((¬(T ∧ ¬r) ↔ r) ∨ (¬¬r ↔ (r ∨ r))) ∧ T ∧ r)

⇒ logic.propositional.idempor

¬(((¬(T ∧ ¬r) ↔ r) ∨ (¬¬r ↔ r)) ∧ T ∧ r)