Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
q || ~~((p -> q) || (p -> q)) || p
⇒ logic.propositional.defimplq || ~~(~p || q || (p -> q)) || p
⇒ logic.propositional.defimplq || ~~(~p || q || ~p || q) || p
⇒ logic.propositional.idemporq || ~~(~p || q) || p