Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.falsezeroor

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