Exercise logic.propositional.dnf.unicode

Description
Proposition to DNF (unicode support)

Derivation

Final term is not finished

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

⇒ logic.propositional.notnot

(T ∧ ¬(¬q ∨ ¬q ∨ p)) ↔ ((r ↔ s) ∨ ¬s)