Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(¬q ∨ ¬¬p) ↔ ((((r ∨ r) ↔ s) ∨ ¬s) ∧ T)

⇒ logic.propositional.notnot

¬(¬q ∨ p) ↔ ((((r ∨ r) ↔ s) ∨ ¬s) ∧ T)