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