Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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