Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

¬(¬q ∨ p) ↔ ((r ↔ (s ∧ s)) ∨ ¬s)