Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempor

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