Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬((r ↔ (r ∧ r)) ∧ (r ∨ r))

⇒ logic.propositional.idempor

¬((r ↔ (r ∧ r)) ∧ r)