Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished
(¬r ∧ ¬r) ∨ ¬((r ↔ r) ∧ T)
logic.propositional.idempand
¬r ∨ ¬((r ↔ r) ∧ T)