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