Although there are a very few occasions on which Aristotle speaks of words, on the one hand, or mental concepts, on the other, as universals, he was no nominalist and no conceptualist. This negative thesis I have argued sufficiently, at least to my own satisfaction, in an earlier paper. He was, rather, a realist, but of a very tenuous sort. As I said in the earlier paper, he viewed universals as real entities but lacking numerical oneness; each is numerically many, (...) and yet each is also one in some sense. The specific identity of numerically distinct particulars creates something like a class, and this is the universal.This interpretation was not, in the earlier paper, defended against those who would attribute to Aristotle a much more robust form of realism, and it is that defense which this paper will undertake to provide. The evidence which can be marshalled for the more robust realism is impressive – more so, I would say, than that which can be brought forth for either the nominalist or the conceptualist interpretations. It rests on numerous passages which either explicitly or implicitly seem to tie together as identical, forms, substances, universals, and intelligible objects. (shrink)

Aristotle's thesis in "Physics" I 8 is that a certain old and familiar problem about coming to be can only be solved with the help of the new account of the "principles" he has developed in "Physics" I 7. This is a strong thesis and the literature on the chapter does not quite do it justice; specifically, as things now stand we are left wondering why Aristotle should have found this problem so compelling in the first place. In this paper (...) I develop an interpretation which (I hope) will help to remedy this. I believe that Aristotle's problem about coming to be depends on a certain principle to the effect that "nothing can become what it already is" (it is this that is supposed to explain why τὸ ὄν cannot come to be ἐξ ὄντος -- cf. 191a30). The main innovation of the interpretation developed here is its suggestion that we understand this principle as a principle about kinds. So understood, the principle does not make the comparatively trivial point that nothing can become any individual it already is, but rather the more powerful and substantive point that nothing can become any kind of thing it already is. I argue that this is a point which Aristotle himself accepts and that this is why the problem about coming to be raises serious difficulties for him. I also discuss Aristotle's proposed solutions to this problem, explaining how each draws on his new account of the principles and why each is required for any full resolution of the difficulties the problem raises. In this way I hope to show how the interpretation developed here does justice to the very strong thesis with which Aristotle begins "Physics" I 8. I conclude briefly and somewhat speculatively with a suggestion as to why Aristotle might accept the principle on which I have suggested the problem turns. (shrink)

Este ensayo sostiene que uno de los desafíos más apremiantes que debe enfrentar una psicología de inspiración peripatética es el de conservar la relevancia causal del alma en los tres órdenes del cambio físico (traslación, alteración y crecimiento), sin hacer de ella un “motor” interno que desplace al organismo por hallarse en continuidad con él. En caso de no sortear con éxito este escollo, tal psicología no podrá afirmar que el alma sea un ítem inextenso e impasible, sino (a lo (...) sumo) un cuerpo sutil que desplaza a otro más grosero. Mittelmann propone una lectura conjunta de los tratados de Alejandro y Aristóteles acerca del alma, con el fin de presentar la estrategia de Alejandro como un modo exitoso de hacer frente a esa dificultad patente. Según Mittelmann, Alejandro hallaría en los “estados disposicionales” de Aristóteles el paradigma apropiado para concebir la eficacia causal de las formas. Aquellos podrían oficiar de motores inmóviles en la medida en que reúnen una doble condición, que ni las formas platónicas ni los cuerpos sutiles pueden satisfacer: por una parte, su carácter incorpóreo no los convierte en substancias (separadas); por otra, su carácter inseparable no los convierte en cuerpos que desplacen a otros cuerpos por hallarse en contacto con ellos. (shrink)

What in Aristotle corresponds, in whole or (more likely) in part, to our contemporary notion of predication? This paper sketches counterparts in Aristotle's text to our theories of expression and of truth, and on this basis inquires into his treatment of sentences assigning an individual to its kinds. In some recent accounts, the Metaphysics offers a fresh look at such sentences in terms of matter and form, in contrast to the simpler theory on offer in the Categories . I argue (...) that the Metaphysics initiates no change in this regard over the Categories . The point that form is (metaphysically) predicated of matter is a contribution, not to the account of statement predication, but to the analysis of compound material substances. Otherwise put, in our terms Aristotelian form is not - in particular, is not also - a propositional function, but a function from matter to compound material substances. (shrink)

Aristotle's thesis in Physics I 8 is that a certain old and familiar problem about coming to be can only be solved with the help of the new account of the "principles" he has developed in Physics I 7. This is a strong thesis and the literature on the chapter does not quite do it justice; specifically, as things now stand we are left wondering why Aristotle should have found this problem so compelling in the first place. In this paper (...) I develop an interpretation which will help to remedy this.I believe that Aristotle's problem about coming to be depends on a certain principle to the effect that "nothing can become what it already is" . The main innovation of the interpretation developed here is its suggestion that we understand this principle as a principle about kinds. So understood, the principle does not make the comparatively trivial point that nothing can become any individual it already is, but rather the more powerful and substantive point that nothing can become any kind of thing it already is. I argue that this is a point which Aristotle himself accepts and that this is why the problem about coming to be raises serious difficulties for him. I also discuss Aristotle's proposed solutions to this problem, explaining how each draws on his new account of the principles and why each is required for any full resolution of the difficulties the problem raises. In this way I hope to show how the interpretation developed here does justice to the very strong thesis with which Aristotle begins Physics I 8. I conclude brie fly and somewhat speculatively with a suggestion as to why Aristotle might accept the principle on which I have suggested the problem turns. (shrink)

Ontological separation plays a key role in Aristotle’s metaphysical project: substances alone are ontologically χωριστόν. The standard view identifies Aristotelian ontological separation with ontological independence, so that ontological separation is a non-symmetric relation. I argue that there is strong textual evidence that Aristotle employs an asymmetric notion of separation in the Metaphysics—one that involves the dependence of other entities on the independent entity. I argue that this notion allows Aristotle to prevent the proliferation of substance-kinds and thus to secure the (...) unity of his metaphysical system. (shrink)

According to the aspect theory of instantiation, a particular A instantiates a universal B if and only if an aspect of A is cross-count identical with an aspect of B. This involves the assumption that both particulars and universals have aspects, and that aspects can mediate between different ways of counting things. I will ask what is new about this account of instantiation and, more importantly, whether it is an improvement on its older relatives. It will turn out that the (...) part of it that is new is the notion of cross-count identity among aspects. As I will show, this notion is both dubious and unnecessary. I will end by presenting a simplified aspect theory of instantiation that does not involve cross-count identity. (shrink)

This paper argues that Aristotle’s Metaphysics Z.3 deploys a reductio against the claim that ‘substances underlie by being the subjects of predication’, in order to demonstrate the need for a new explanation of how substances underlie. Z.13 and H.1 corroborate this reading: both allude to an argument originally contained in Z.3, but now lost from our text, that form, matter and compound ‘underlie’ in different ways. This helps explain some of Z’s peculiarities—and it avoids committing Aristotle to self-contradiction about whether (...) matter is substance, a claim denied in the reductio but endorsed elsewhere. (shrink)