Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

(¬p ∧ q) ↔ ((r ↔ s) ∨ ¬s)