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