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