 Ramus’ final contribution to the debate was entitled, characteristically, Defensio pro Aristotele adversus Jacobus Scheccium, that is, a defense of Aristotle against Schegk. In this work he makes clear the difference between his position, which he maintained had also been that of Aristotle, and the view of Schegk and other Aristotelians. The question at stake was what logic really was: its definition, its limitations, its goal and its nature. According to the Aristotelians, the different parts of the Organon—the Categories, On Interpretation, the Prior and Posterior Analytics, the Topics and the Sophistical Refutations—corresponded to the different parts of logic. There was, for instance, an essential difference between probability (the subject of the Topics) and certainty (dealt with in the two Analytics).