“…Kelsen emphasizes, however, that although one may presuppose the basic norm, one does not have to, which is to say that although one may conceive of law as a system of valid norms, one does not have to. For example, Karl Olivecrona (1939) argues that there is no such thing as binding force (or normativity), and that law is best understood as a set of independent imperatives, whose function is not to confer rights and impose duties, but to cause the subjects of law to behave in certain ways (on this, see Spaak 2014, chaps 7–8). On Kelsen’s analysis, then, the validity of law is conditional upon the presupposition of the basic norm, or, alternatively, as Joseph Raz (2009c [1979], 303–8) proposes, is seen from the point of view of the person presupposing the basic norm; and, as we have just seen, the presupposition of the basic norm in turn is conditional upon the wish of the person making the presupposition to conceive of law as a system of valid norms.…”