Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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