Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

¬((q ∨ q) → p) ↔ (¬T ∨ (r ↔ s) ∨ ¬s)

⇒ logic.propositional.nottrue

¬((q ∨ q) → p) ↔ (F ∨ (r ↔ s) ∨ ¬s)