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