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