Chapter I contains an examination of the criticisms which some philosophers have advanced against Kant concerning the problem of our knowledge of other thinking beings. In the course of this examination the nature and scope of Kant's inquiry is brought into focus: it is a transcendental inquiry which deals with the a priori conditions of the possibility of experience. This means two things: The question whether there are other thinking beings besides myself is for Kant not a philosophical , but (...) an empirical question which can be answered only a posteriori, that is, by actual experience. The a priori conditions must nevertheless be such that they do not preclude but leave room for the experience by which we find out whether there are other thinking beings besides ourselves. Chapter II develops the central thought of the Transcendental Deduction in order to deal with two complementary issues: with Kant's confusions with respect to the 'subjective', and with the notion of an 'object of representations'. It is argued that objectivity in the Critical-transcendental sense ranges equally over the 'outer' and 'inner'. This means that inner experience is objective, i.e., can be expressed in judgments which possess objective validity and necessary universality for everybody. Chapter III deals with the Second Analogy. The main purpose here is to show what types of objects are constituted by means of the categories: the determination of a manifold of sensible intuition by means of the category of cause and effect is its determination as a happening or as an event. In chapter IV, finally, it is shown that and how a particular type of empirical objects, namely thinking beings, can be seen as falling under the objects which are constituted by the categories. (shrink)