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