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