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