The author revisits H. L. A. Hart's theory of positive law and argues for a major qualification to the thesis of the separation of law and morality based on a concept of systemic legitimacy derived from the social theory of Jurgen Habermas. He argues that standards for assessing the degree of systemic legitimacy in modern legal systems can develop through reflective exercise of “critical legality,” a concept coined to parallel Hart's “critical morality,” and an expanded understanding of the “external” and (...) “internal” perspectives on legal systems. Following Habermas, he argues that modern positive law must retain systemic legitimacy. After suggesting criteria for measuring systemic legitimacy, the author concludes that the concept provides a useful approach to contemporary problems of “lawless” regimes and “law's imperialism.”. (shrink)

El trabajo reconstruye y analiza críticamente la respuesta de Jeremy Waldron a importantes problemas sobre política y derecho, justicia y autoridad. Waldron reivindica al mismo tiempo una tesis no escéptica sobre la existencia los derechos morales-políticos, una tesis escéptica sobre la existencia de procedimientos epistémicos superiores para identificarlos, y una tesis positiva sobre la legitimidad política. El trabajo argumenta que su respuesta solo resulta consistente si se añade un cuarto vértice: el presupuesto de “igualdad de agencia y capacidad epistémica” en (...) los portadores de derechos. Pero su introducción requiere abandonar y redefinir dos de los otros elementos, lo que conduce finalmente a las respuestas típicas del deliberativismo epistémico. Las críticas de Waldron a la revisión judicial se reinterpretan sobre esa nueva base. (shrink)

Some authors have speculated about the fact that if the law were connected to morality, then it would not be relevant, because morality would be enough to regulate social life. A study of this objection to the connection thesis will be outlined in this paper. In other words, the possible answers to the question about the practical difference that law gives to morality will be analyzed. The work of the Argentine philosopher Carlos Nino will be taken as the starting point (...) for this task. (shrink)

This article analyzes the thesis of ethical relativism, as defended by Alchourrón and Bulygin. These authors offer, on the one hand, a suggestive conception according to which the question “what are our obligations?” is equivalent to thinking about what is to be done; on the other hand, they defend a relativist conception of ethics. They present three objections to constructivist accounts of ethics that are not relativist: a) the argument of the burden of the proof; b) a version of the (...) dilemma of Euthyphro, and c) the argument of particularism. This article presents counterarguments to these objections in the attempt to show that they are not conclusive and that a space therefore remains for objectivity in the normative sphere. Keywords: Alchourrón-Bulygin, ethical relativism, ethical constructivism, burden of proof, particularism. (shrink)