Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

¬(F ∨ (q → p)) ↔ (((r ↔ s) ∨ ¬s) ∧ T)