Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

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

⇒ logic.propositional.absorpand

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

⇒ logic.propositional.idempand

q || ~~p

⇒ logic.propositional.notnot

q || p