Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.falsezeroand

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

⇒ logic.propositional.falsezeroor

q || q || ~~p

⇒ logic.propositional.notnot

q || q || p