The neo-Kantians, when pressing the issue, would lead Kelsen into discussions concerning whether the existence of such a Grundnorm (Basic Norm) was strictly symbolic or whether it had a concrete foundation. This has led to the further division within this debate concerning the currency of the term Grundnorm as to whether it should be read, on the one hand, as part and parcel of Hans Vaihinger's "as-if" hypothetical construction. On the other hand, to those seeking a practical reading, the Grundnorm corresponded to something directly and concretely comparable to a sovereign nation's federal constitution, under which would be organized all of its regional and local laws, and no law would be recognized as being superior to it.