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