Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

¬(¬q ∨ p) ↔ (((r ∨ F) ↔ s) ∨ ¬s)