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Ontological Structures In Aristotle, Donald Morrison

The Society for Ancient Greek Philosophy Newsletter

According to the traditional view of the Categories, the ten "categories" are the highest genera of beings. Each of them stands at the head of a tree-like division of the the items falling under it; this division is also sometimes called a "category". The metaphysical structure made up of these ten divisions is the "system of the categories". According to the traditional view, the system of the categories is very rigidly laid out. Not only is every being included in the structure, but every being has exactly one location. Each being is predicated essentially of those below it along the …

Existence Claims In The Posterior Analytics, Richard D. Mckirahan Jr.

The Society for Ancient Greek Philosophy Newsletter

Existence Claims in the Posterior Analytics

Richard McKirahan

This paper treats several questions about the place of existence claims in theory of science presented in the Posterior Analytics. On the basis of a close reading of the text it shows that Aristotle identifies existence claims as a distinct kind of scientific principles (alongside definitions and common principles), that what these principles declare to exist are the subjects as opposed to the attributes that the science studies (triangles, as opposed to the property of having angles equal to two right angles), and not all the subjects, but a subset of them, …