Salvioli, Gabriele Keywords: Public international law | Mots clefs: Droit international public | ABSTRACT Gabriele Salvioli begins his course with a presentation of the question of the definition of the rule of international law. He focuses on the element of the application, and then examines the presentation of positive international law on one hand, and natural law on the other hand. Gabriele Salvioli commence son cours par une présentation de la question de la définition de la règle de droit international. Il s'intéresse ensuite à l'élément de l'applic…