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