Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

(F /\ r) || (F /\ r) || ((q || ~~p) /\ (q || ~~p))

⇒ logic.propositional.falsezeroand

F || (F /\ r) || ((q || ~~p) /\ (q || ~~p))