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