Exercise logic.propositional.dnf
Description
Proposition to DNF
Derivation
![](http://ideas.cs.uu.nl/images/external.png)
(F /\ r) || (~p -> (q || q || ~~p))
⇒ logic.propositional.falsezeroandF || (~p -> (q || q || ~~p))
⇒ logic.propositional.falsezeroor~p -> (q || q || ~~p)
⇒ logic.propositional.idempor~p -> (q || ~~p)
⇒ logic.propositional.notnot~p -> (q || p)
⇒ logic.propositional.defimpl~~p || q || p
⇒ logic.propositional.notnotp || q || p