ON THE LOGICAL PART OF THE FIRST CHAPTER OF 'INTERPRETATION OF PLATO'S PHILOSOPHY AND PROCLUS DIADOCHUS' BY JOANE PETRIZI (Pro lohichnu chastynu pershoho rozdilu 'Rozhliadu Platonovoi filosofii ta Prokla Diadokha' Ioana Petrytsi) Source: Filosofska d

The meaning of the diagram presented in the first chapter of 'Interpretation of the 'Elementatio theologica' of Proclus' by Georgian philosopher Joane Petrizi (XI-XII centuries) is explained in the article (see the picture-diagram at the beginning of the article). The diagram serves there as an illustration for the laws of Aristotle's 'Organon'. It is identified with one of three diagrams (namely, with the diagram for the Figure I) that are presented in Ammonius Hermiae's (V-VI centuries) comment on Aristotle's 'Prior Analytics', and which are based on Aristotle's idea of a linear formulation of schemes of categorical syllogisms and their corresponding division into three figures.