Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

¬(q → ((F ∨ p) ∧ p)) ↔ ((r ↔ s) ∨ ¬s)