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