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