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