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