Petrazycki ascribed to legal dogmatics a function and a task. Its function is to contribute to the unification of law while its task is to contribute to the realization of the ideal of the Rechtsstaat. Since these two goals are not always compatible, Fittipaldi focuses on the legality task and shows that Petra\u17cycki devised a legal dogmatics that is purer than that of Hans Kelsen. Fittipaldi also shows that the pureness of Petrazycki\u2019s legal dogmatics would lead, at least in some cases, to its practical impossibility. However, Fittipaldi believes that the proposal of Petrazycki to conceive legal dogmatics as a subjective-relational science, rather than an objective-cognitive one, if consistently developed, may provide a solution to ...