Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬(¬q ∨ p) ↔ (¬s ∨ (r ↔ (s ∨ F)))

⇒ logic.propositional.falsezeroor

¬(¬q ∨ p) ↔ (¬s ∨ (r ↔ s))