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