Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.nottrue

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