Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
T /\ (q || (~p -> (F /\ r)))
⇒ logic.propositional.falsezeroandT /\ (q || (~p -> F))
⇒ logic.propositional.defimplT /\ (q || ~~p || F)
⇒ logic.propositional.falsezeroorT /\ (q || ~~p)
⇒ logic.propositional.notnotT /\ (q || p)