Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬¬¬(q → (¬T ∨ p)) ↔ ((r ↔ s) ∨ ¬s)

⇒ logic.propositional.nottrue

¬¬¬(q → (F ∨ p)) ↔ ((r ↔ s) ∨ ¬s)