Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroand

q || ~~p || F || q

⇒ logic.propositional.falsezeroor

q || ~~p || q

⇒ logic.propositional.notnot

q || p || q