Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(¬¬r ↔ r) ∨ ¬(¬¬(T ∧ r) ∧ T)

⇒ logic.propositional.notnot

¬(¬¬r ↔ r) ∨ ¬(T ∧ r ∧ T)

⇒ logic.propositional.truezeroand

¬(¬¬r ↔ r) ∨ ¬(r ∧ T)

⇒ logic.propositional.truezeroand

¬(¬¬r ↔ r) ∨ ¬r