Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(((r ∧ (r ∨ r)) ↔ r) ∧ T ∧ r)

⇒ logic.propositional.absorpand

¬((r ↔ r) ∧ T ∧ r)