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