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