Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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