Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.absorpand

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

⇒ logic.propositional.absorpand

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

⇒ logic.propositional.falsezeroand

F || q || ~~p