Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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