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