Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬¬(¬((r ↔ r) ∧ r) ∧ T)

⇒ logic.propositional.defequiv

¬¬(¬(((r ∧ r) ∨ (¬r ∧ ¬r)) ∧ r) ∧ T)

⇒ logic.propositional.idempand

¬¬(¬((r ∨ (¬r ∧ ¬r)) ∧ r) ∧ T)

⇒ logic.propositional.absorpand

¬¬(¬r ∧ T)

⇒ logic.propositional.truezeroand

¬¬¬r