Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.falsezeroor

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