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