Hostname: page-component-5cf477f64f-rdph2 Total loading time: 0 Render date: 2025-03-31T18:16:20.422Z Has data issue: false hasContentIssue false

Kant’s Legal Positivism and Natural Law Theory

Published online by Cambridge University Press:  20 March 2025

Çağlar Çömez*
Affiliation:
Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany

Abstract

Kant’s position in analytical jurisprudence has not been sufficiently explored. This paper aims to remedy this shortcoming. The main issue in this paper is to which extent Kant’s legal theory is an instance of natural law theory or legal positivism. Robert Alexy is one of the few philosophers who addressed this issue. Alexy believes that Kant defends a version of natural law theory that puts moral limits on legal validity. I show that Alexy’s interpretation is unsuccessful. I argue that Kant defends the positivist separability thesis that norms need not meet moral requirements to qualify as legal norms.

Type
Article
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Kantian Review

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alexy, Robert (1996) ‘Discourse theory and human rights’. Ratio Juris, 9, 209235.CrossRefGoogle Scholar
Alexy, Robert (1999) ‘A defense of Radbruch’s formula’. In Dyzenhaus, David (ed.), Recrafting the Rule of Law: The Limits of Legal Order (Oxford and Portland, OR: Hart Publishing), 1539.Google Scholar
Alexy, Robert (2002) The Argument from Injustice: A Reply to Legal Positivism. Trans. Stanley L. Paulson and Bonnie Litschewski Paulson. Oxford: Oxford University Press.Google Scholar
Alexy, Robert (2008) ‘On the concept and the nature of law’. Ratio Juris, 21, 281299.CrossRefGoogle Scholar
Alexy, Robert (2010) ‘The dual nature of law’. Ratio Juris, 23, 167182.CrossRefGoogle Scholar
Alexy, Robert (2012a) ‘Law, morality, and the existence of human rights’. Ratio Juris, 25, 214.CrossRefGoogle Scholar
Alexy, Robert (2012b) ‘Some reflections on the ideal dimension of law and on the legal philosophy of John Finnis’. The American Journal of Jurisprudence, 58, 97110.CrossRefGoogle Scholar
Alexy, Robert (2017) ‘The ideal dimension of law’. In George, Duke and George, Robert P. (ed.), The Cambridge Companion to Natural Law Jurisprudence (Cambridge: Cambridge University Press), 314341.CrossRefGoogle Scholar
Alexy, Robert (2019) ‘Kant’s non-positivistic concept of law’. Kantian Review, 24, 497512.CrossRefGoogle Scholar
Alexy, Robert (2021) ‘The existence of human rights’. In Law’s Ideal Dimension (Oxford: Oxford University Press), 142153.CrossRefGoogle Scholar
Austin, John (1995) The Province of Jurisprudence Determined. Ed. Rumble, Wilfrid E.. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
Bentham, Jeremy (1988) A Fragment on Government. Ed. Harrison, Ross. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
Blackstone, William (2016) Commentaries on the Laws of England: Book I. Ed. Stern, Simon. Oxford: Oxford University Press.Google Scholar
Brink, David O. (1985) ‘Legal positivism and natural law reconsidered’. The Monist, 68, 364387.CrossRefGoogle Scholar
Bulygin, Eugenio (2015) Essays in Legal Philosophy. Ed. Bernal, Carlos, Huerta, Carla, Mazzarese, Tecla, Moreso, José Juan, Navarro, Pablo E., Paulson, Stanley L.. Oxford: Oxford University Press.CrossRefGoogle Scholar
Campbell, Tom (1998) ‘The point of legal positivism’. King’s College Law Journal, 9, 6178.Google Scholar
Campbell, Tom (2000) ‘Democratic aspects of ethical positivism’. In Campbell, Tom and Goldsworthy, Jeffrey (eds.), Judicial Power, Democracy and Legal Positivism (London: Routledge), 324.Google Scholar
Campbell, Tom (2016) The Legal Theory of Ethical Positivism. London: Routledge.CrossRefGoogle Scholar
Coleman, Jules L., and Leiter, Brian (2010) ‘Legal positivism’. In Patterson, Dennis (ed.), A Companion to Philosophy of Law and Legal Theory (Hoboken, NJ: John Wiley & Sons, Ltd), 228248.CrossRefGoogle Scholar
Çömez, Çağlar (2022) ‘Varieties of natural law jurisprudence and Thomas Aquinas’ hybrid natural law theory’. Jahrbuch für Recht und Ethik, 30, 235249.CrossRefGoogle Scholar
Crowe, Jonathan (2016) ‘Natural law theories’. Philosophy Compass, 11, 91101.CrossRefGoogle Scholar
Crowe, Jonathan (2019) Natural Law and the Nature of Law. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
Finnis, John (1986) ‘The “natural law tradition”’. Journal of Legal Education, 36, 492495.Google Scholar
Finnis, John (2011a) ‘The truth in legal positivism’. In Philosophy of Law: Collected Essays Volume IV (Oxford: Oxford University Press), 174188.CrossRefGoogle Scholar
Finnis, John (2011b) Natural Law and Natural Rights. Oxford: Clarendon Press.Google Scholar
Gardner, John (2001) ‘Legal positivism: 5½ Myths’. The American Journal of Jurisprudence, 46, 199227.CrossRefGoogle Scholar
Guyer, Paul (2019) Kant on the Rationality of Morality. Cambridge: Cambridge University Press.Google Scholar
Hart, H. L. A. (1958) ‘Positivism and the separation of law and morals’. Harvard Law Review, 71, 593629.CrossRefGoogle Scholar
Hart, H. L. A. (1994) The Concept of Law. Oxford: Oxford University Press.Google Scholar
Himma, Kenneth Einar (2001) ‘Natural law’. In Fieser, James and Dowden, Bradley (eds.), The Internet Encyclopedia of Philosophy. <iep.utm.edu/natlaw/>Google Scholar
Kant, Immanuel (1996a) Practical Philosophy. Trans. Mary J. Gregor. Cambridge: Cambridge University Press.Google Scholar
Kant, Immanuel (1996b) Religion and Rational Theology. Trans. Allen Wood and George di Giovanni. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
Kant, Immanuel (1998) Critique of Pure Reason. Trans. Paul Guyer and Allen Wood. Cambridge: Cambridge University Press.CrossRefGoogle Scholar
Kelsen, Hans (1949a) General Theory of Law and State. Trans. Anders Wedberg. Cambridge, MA: Harvard University Press.Google Scholar
Kelsen, Hans (1949b) ‘The natural-law doctrine before the tribunal of science’. Philosophical Quarterly, 2, 481513.Google Scholar
Kelsen, Hans (1957) What Is Justice? Justice, Law, and Politics in the Mirror of Science. Berkeley, CA: University of California Press.CrossRefGoogle Scholar
Kramer, Matthew (2012) ‘What is legal philosophy?’. Metaphilosophy, 43, 125134.CrossRefGoogle Scholar
Murphy, Jeffrie G., and Coleman, Jules L. (1990) Philosophy of Law: An Introduction to Jurisprudence. New York: Routledge.Google Scholar
Murphy, Mark C. (2003) ’Natural law jurisprudence’. Legal Theory, 9, 241267.CrossRefGoogle Scholar
O’Neill, Onora (1990) ‘Consistency in action’. In Constructions of Reason: Explorations of Kant’s Practical Philosophy (Cambridge: Cambridge University Press), 81104.CrossRefGoogle Scholar
Paulson, Stanley (1992) ‘The neo-Kantian dimension of Kelsen’s pure theory of law’. Oxford Journal of Legal Studies, 12, 331332.CrossRefGoogle Scholar
Paulson, Stanley (2000) ‘On the puzzle surrounding Hans Kelsen’s basic norm’. Ratio Juris, 13, 279293.CrossRefGoogle Scholar
Radbruch, Gustav (2006) ‘Statutory lawlessness and supra-statutory law’. Oxford Journal of Legal Studies, 26, 111.CrossRefGoogle Scholar
Schauer, Frederick (2021) ‘Normative legal positivism’. In Spaak, Torben and Mindus, Patricia (eds.), The Cambridge Companion to Legal Positivism (Cambridge: Cambridge University Press), 6178.CrossRefGoogle Scholar
Soper, Philip (1992) ‘Some natural confusions about natural law’. Michigan Law Review, 90, 23932423.CrossRefGoogle Scholar
Trivisonno, Alexandre Travessoni Gomes (2011) ‘Kants Rechtstheorie und die Beziehung zwischen Recht und Moral’. Archiv für Rechts- und Sozialphilosophie, 97, 291304.Google Scholar
Trivisonno, Alexandre Travessoni Gomes (2018) ‘Obedience to authority and the relation between law and morality: Kant as legal positivist?’. In Bellantuono, Giuseppe and Lara, Fabiano (eds.), Legal Conversations between Italy and Brazil (Trento: Università di Trento), 3756.Google Scholar
Waldron, Jeremy (1996) ‘Kant’s legal positivism’. Harvard Law Review, 109, 15351566.CrossRefGoogle Scholar
Westphal, Kenneth (1992) ‘Kant on the state, law, and obedience to authority in the alleged “anti-revolutionary” writings’. Journal of Philosophical Research, 17, 383426.CrossRefGoogle Scholar