Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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