Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

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