Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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