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