The paper aims at a critical discussion of Alexy’s conception of the relationship between law and morality, which is known to insist on their necessary connection. After a brief recapitulation of this conception, the author scrutinizes three of its essential elements: the thesis of the dual nature of law, the argument from law’s claim to moral correctness, and the idea of an objective morality. Finally, he sketches his own position which, in some respects, resembles Alexy’s view, but also differs from (...) it in certain relevant points. (shrink)

Robert Alexy's claim that law of necessity has a dual nature raises many interesting philosophical questions. In this article, I consider some of these questions, such as what the meaning of the correctness thesis is, whether Alexy's discourse theory supports this thesis, and whether the thesis is defensible; whether Alexy's argument from anarchy and civil war supports the claim that law of necessity has a real dimension; and what the implications are of the use of moral arguments, such as the (...) argument from injustice, for the status of Alexy's inquiry. (shrink)