An empty area tells you nothing. An argument is valid if the diagram forces you to admit that its conclusion is true. Otherwise, it is invalid. Construct two Venn Diagrams on the syllogism below, one of which represents that argument on the modern view, and the other of which represents it on the classical perspective. Decide whether the argument is valid or invalid on each view.
All vampires are bats.
No vampires are hemophiliacs. Some hemophiliacs are not bats.