Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.absorpand

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

⇒ logic.propositional.idempand

q || ~~p

⇒ logic.propositional.notnot

q || p