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