Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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