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.idempor

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