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