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