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