Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.absorpor

q || ~~p

⇒ logic.propositional.notnot

q || p