Exercise logic.propositional.cnf.unicode

Description
Proposition to CNF (unicode support)

Derivation

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