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