Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

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