Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

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