Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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