Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

~(~q || r || F || r || F) || q || r

⇒ logic.propositional.falsezeroor

~(~q || r || r || F) || q || r

⇒ logic.propositional.falsezeroor

~(~q || r || r) || q || r

⇒ logic.propositional.idempor

~(~q || r) || q || r