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