The essay discusses the import of the separability thesis both for legal positivism and for contemporary legal practice. First, the place of the separability thesis in legal positivism will be explored, distinguishing between “standard positivism” and “post‐Hartian positivism.” Then I will consider various kinds of relations between law and morality that are worthy of jurisprudential interest, and explore, from a positivist point of view, what kind of relations between law and morality must be rejected, what kind of such relations should (...) be taken into account, and what kind of such relations are indeed of no import at all. The upshot of this analysis consists in highlighting the distinction between two different dimensions of legal validity (formal validity and material validity respectively), and in pointing out that the positivist separability thesis can apply to formal validity only. On the other hand, when the ascertainment of material validity is at stake, some form of moral reasoning may well be involved (here and now, it isnecessarilyinvolved). The essay concludes with some brief remarks on the persisting importance of the positivist jurisprudential project. (shrink)

This paper offers a diachronic reconstruction of MacCormick's theory of law and legal argumentation: In particular, two related points will be highlighted in which the difference between the perspective upheld in Legal Reasoning and Legal Theory and the later writings is particularly marked. The first point concerns MacCormick's gradual break with legal positivism, and more specifically the thesis that the implicit pretension to justice of law proves legal positivism false in all its different versions. The second point concerns MacCormick's acceptance (...) of the one-right-answer thesis and the consequent thinning of the differences between MacCormick's theory of legal reasoning and that of Ronald Dworkin and of Robert Alexy. The intent, however, is not only to describe this change in MacCormick's thought, but also to attempt a defence of the original view that we find in Legal Reasoning and Legal Theory. (shrink)

In this article, I distinguish between a moral and a strictly legal conception of legal normativity, and argue that legal positivists can account for law's normativity in the strictly legal but not in the moral sense, while pointing out that normativity in the former sense is of little interest, at least to lawyers. I add, however, that while the moral conception of law's normativity is to be preferred to the strictly legal conception from the rather narrow viewpoint of the study (...) of law's normativity, it is less attractive than the latter from the broader viewpoint of the study of the nature of law. I then distinguish between a moral and a strictly legal conception of the normative force of legal justification, and argue that legal positivists may without contradiction embrace the moral conception, and that therefore the analysis of the normative force of legal justification need not be a problem for legal positivists. I conclude that, on the whole, we have reason to prefer legal positivism to natural law theory. I begin by introducing the subject of jurisprudence . I then introduce the natural law/legal positivism debate, suggesting that we ought to understand it as a debate about the proper way to explicate the concept of law . I proceed to argue that legal decision‐making is a matter of applying legal norms to facts, and that syllogistic reasoning plays a prominent role in legal decision‐making thus conceived . Having done that, I discuss law's normativity , the normative force of legal justification , and the relation between the former and the latter . I conclude with a critical comment on Joseph Raz’ understanding of the question of law's normativity. (shrink)

In this paper, the author responds to the claim that his critique of legal positivism, based on an account of adjudication in South Ahica, misses its target because it ignores, first, the positivist thesis of judicial discretion and, secondly, the fact that positivism offers no account of judicial obligation. He argues that these theses expose a tension in positivism between its commitments to liberal individualism and to the supremacy of positive law, a tension which can be resolved only by situating (...) positivism in its true context, the Hobbesian argument for the legitimacy of law. Following Dworkin, he advocates the practice‐oriented common law tradition, one that makes the legitimacy of law a matter of standards already implicit in law which are best revealed in adjudication. (shrink)

In this paper, the author responds to the claim that his critique of legal positivism, based on an account of adjudication in South Ahica, misses its target because it ignores, first, the positivist thesis of judicial discretion and, secondly, the fact that positivism offers no account of judicial obligation. He argues that these theses expose a tension in positivism between its commitments to liberal individualism and to the supremacy of positive law, a tension which can be resolved only by situating (...) positivism in its true context, the Hobbesian argument for the legitimacy of law. Following Dworkin, he advocates the practice‐oriented common law tradition, one that makes the legitimacy of law a matter of standards already implicit in law which are best revealed in adjudication. (shrink)