Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

Final term is not finished

¬(¬¬r ∧ ((r ∧ r) ∨ (r ∧ r) ∨ ¬r) ∧ T)

⇒ logic.propositional.idempand

¬(¬¬r ∧ (r ∨ (r ∧ r) ∨ ¬r) ∧ T)