Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.falsezeroand

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

⇒ logic.propositional.falsezeroor

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

⇒ logic.propositional.notnot

q || p || p || q

⇒ logic.propositional.idempor

q || p || q