Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

¬((¬q ∧ ¬q) ∨ p) ↔ ((r ↔ s) ∨ ¬s)