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