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