Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(r /\ F) || ~~(q || ~~(p || p))
⇒ logic.propositional.notnot(r /\ F) || q || ~~(p || p)
⇒ logic.propositional.notnot(r /\ F) || q || p || p
⇒ logic.propositional.idempor(r /\ F) || q || p