Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(r ↔ r) ∨ ¬T ∨ (r → ¬((¬¬r ↔ r) ∧ (r ↔ r))) ∨ ¬T ∨ ¬r

⇒ logic.propositional.notnot

¬(r ↔ r) ∨ ¬T ∨ (r → ¬((r ↔ r) ∧ (r ↔ r))) ∨ ¬T ∨ ¬r