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