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