Raja Bahlul

The main object of this paper is to clarify and evaluate Avicenna’s view of universals, in light of some modern and contemporarydiscussions. According to Avicenna, universality is a contingent attribute of entities that are in themselves neither universal norparticular. An account of universality as a contingent attribute is offered which clarifies and gives additional support to Avicenna’sview. Nevertheless, it will be argued that Avicenna, through his use of such terms as “nature” and “quiddity,” faces the same problemswhich he attributes to his predecessors.

The Principle of the Identity of Indiscernibles, commonly attributed to Leibniz, has given rise to much discussion and debate. Thus philosophers have argued over how it should be formulated, whether it is true, and what, if any, metaphysical consequences it has.It is not my intention to add to these discussions here, having done so elsewhere. Rather, I intend to introduce and defend a closely related principle which I shall, for want of a better name, refer to as The Principle of the Identity of Necessary Similarity’.In section II, I briefly recapitulate some of the distinctions and other relevant points which are customarily made in connection with. This is all too familiar material, but it is necessary in order to provide a general framework of concepts in terms of which we can discuss in an intelligible fashion.