Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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