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