The question of the simultaneity of relatives is one of the most debated aspects of Aristotle’s theory of relational properties. Are they exceptions to the rules of co-introduction and co-suppression for a pair of relatives? The present article studies a particular chapter of the long history of this problem, the contribution of three Byzantine thinkers of the ninth century. Their discussion is embedded in the complex phenomenon of the Iconoclast crisis. For reinvigorating their discourse on icons, these iconophiles thinkers deployed (...) Aristotelian logic, notably by treating the model and the image as Aristotelian relatives. This move implies tackling the issue of the simultaneity of relatives. Metrophanes, Nicephorus and Theodore solved it in three different ways which the present article reconstructs. (shrink)

Aristotle's criticism of Platonic Forms in the Metaphysics has been a major source for the understanding and developments of the theory of Forms in later Antiquity. One of the cases in point is Aristotle's argument, in Metaphysics I 9, 990b22-991a2, against Forms of non-substances. In this paper, I will first provide a careful analysis of this passage. Next, I will discuss how the argument has been interpreted - and refuted - by the fifth-century Neoplatonists Syrianus and Proclus. This interpretation has (...) played an important role in the broader context of the Neoplatonic debates on the range of Plato's theory of Forms, which was one of the traditional problems discussed about the Forms in later Platonism. (shrink)