Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

¬(((r ↔ r) ∧ r) ∨ ((r ↔ r) ∧ r))