Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished
¬(¬q ∨ p) ↔ ((((F ∧ F) ∨ r ∨ r) ↔ s) ∨ ¬s)
logic.propositional.falsezeroand
¬(¬q ∨ p) ↔ (((F ∨ r ∨ r) ↔ s) ∨ ¬s)