Giovanni Battista Ratti
The present article is devoted to the analysis of some features of the influential theory of legal sentences elaborated by Manuel Atienza and Juan Ruiz Manero. In particular, such an analysis deals with three main problems which are present in Atienza�s and Ruiz Manero�s rational reconstruction of regulative norms: i) the strongly Platonist conception of the logic of norms which they seemingly presuppose; ii) the controversial notions of �openness� and �closure� of normative conditionals; iii) and the contradictoriness of some of their background assumptions regarding the rules/principles dichotomy