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