Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

~((q || q) -> r) || ((q || r || r) /\ (q || r || r))

⇒ logic.propositional.idempand

~((q || q) -> r) || q || r || r

⇒ logic.propositional.idempor

~((q || q) -> r) || q || r