Exercise logic.propositional.dnf

Description
Proposition to DNF

Derivation

Final term is not finished

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

⇒ logic.propositional.idempand

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

⇒ logic.propositional.idempor

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