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