Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.truezeroand

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

⇒ logic.propositional.notnot

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