Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.truezeroand

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