Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

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