Abstract
Wedin considers the problem of the compatibility of the Categories account of primary substance with the theory of substantial form of the Metaphysics. Wedin collects from the secondary literature the most important arguments for incompatibilism, and offers some proposals for restoring their harmony. While admitting the evident differences in the way Aristotle treats the question of substance in each treatise, Wedin is keen to argue that these differences are not sufficient to conclude that the treatises are incompatible. Wedin singles out for particular attention, and criticism, Michael Frede and Gunther Patzig's account of Metaphysics Zeta, according to which the primary substance of the Metaphysics and the basic subject of predications is the form. Wedin considers two ‘philosophical’ arguments and one ‘Aristotelian’ argument for the subjecthood of forms, and argues that the textual evidence does not support the claim that form is the subject of accidents.