Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

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