Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.notnot

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