Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

(p || (~~p /\ ~~p) || q) /\ (r <-> p)

⇒ logic.propositional.idempand

(p || ~~p || q) /\ (r <-> p)

⇒ logic.propositional.notnot

(p || p || q) /\ (r <-> p)