This text means to analyse Luigi Ferrajoli’s attempt to build, by way of logic and axioms, a theory of fundamental rights, starting from which denouncing the lack and the inconsistency of the positive law, when the protection of basic rights is concerned. According to this analysis, the logical implications proper to this theoretical perspective lead to a complete rewriting of the system of the human rights, as positively set forth in the international law, and to the abandonment of the initial assumptions. Questo testo intende analizzare il tentativo di Luigi Ferrajoli di costruire per via logica e assiomatizzata una “teoria dei diritti fondamentali” a partire dalla quale denunciare le carenze e le contraddizioni del diritto positivo...