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