One of the main difficulties that Neoplatonic commentators of Aristotle face is the different treatment that the Categories and the Metaphysics offer to the question of the substance. After describing briefly the status quaestionis ousiae in Aristotle, and after tracing the main Neoplatonic interpretations of this doctrine, this article attempts to demonstrate that the Neoplatonists of Athens and Alexandria, Syrianus and Ammonius, inaugurate a new interpretation of the Aristotelian doctrine. With regard to the category of substance in general and to (...) the question of substantiality of “immanent form” in particular, this new interpretation goes beyond the positions of Plotinus and Porphyry and returns the ontological value to the Aristotelian substances. Unlike Plotinus, who recognized as ousia only that one intelligible, that is five genres of the Platonic Sophist, and unlike Porphyry, who defused the anti–Platonic fuse of the Categories, giving to this treaty a mainly semantic skopos, these philosophers, through their original study of the theory of the three states of katholou, already shed in the Porphyrian Eisagôgê, fit the immanent forms of Aristotle, recognized as substances and as a reflection of the transcendental universal, into the late antique Neoplatonic metaphysical triadic structure. (shrink)

The aim of this study is to discuss an original philosophical contribution made by Philoponus, who in In Cat. 18, 14–22 equates koinon in its most peculiar meaning with the concept of koinônia understood as a particu­lar case of Platonic methexis. First, the paper analyzes the passages where the Neoplatonic commentators of the Categories distinguish four distinct meanings of the Aristotelian concept of koinon. Subsequently, this article emphasizes the differences between Philoponus’ herme­neutical suggestions and those of the other commentators. Philopo­nus (...) clarifies that while every koinon is methekton, Aristotle’s koinon is characterized by the fact that the participation is ex isou and kata meros. Thus, koinônia, according to Philoponus, is a particular case of methexis, where everyone participating in something participates in it equally and singly. The example cited by Philoponus to explain Aristotle’s koinon is that of men participating equally and singly in human nature. The study concludes with a discussion of the relationship among the concepts of koinon, koinônia and methexis. (shrink)

This paper lists and examines the explicit references to Aristotle’s Topics in the Greek Neoplatonic commentaries on the Categories. The references to the Topics by Porphyry, Dexippus, Ammonius, Simplicius, Olympiodorus, Philoponus and David are listed according the usual prolegomena to Aristotle’s works. In particular, the paper reconstructs David ’s original thesis about the proponents of the title Pre-Topics for the Categories and compares Ammonius’, Simplicius’ and Olympiodorus’ doxographies about the postpraedicamenta. Moreover, the study identifies two general trends. The first one (...) is that all the commentators after Proclus share the same general view about: the authenticity of the Topics, Aristotle’s writing style in them, the part of philosophy to which they belong, their purpose, their usefulness and their place in the reading order. The second one is that whereas Porphyry, Dexippus and Simplicius use the Topics as an aid to understanding the Categories, Ammonius, Olympiodorus and David do not. (shrink)