In theCritique of Pure Reason,Kant argues for two principles that concern magnitudes. The first is the principle that ‘All intuitions are extensive magnitudes,’ which appears in the Axioms of Intuition ; the second is the principle that ‘In all appearances the real, which is an object of sensation, has an intensive magnitude, that is, a degree,’ which appears in the Anticipations of Perception. A circle drawn in geometry and the space occupied by an object such as a book are paradigm (...) examples of extensive magnitudes, while the intensity of a light is a paradigm example of an intensive magnitude. These principles justify and explain the possibility of applying mathematics to objects of experience. The Axioms principle also explains the possibility of any mathematical cognition at all. (shrink)

Kant is known for having said relatively little about truth in Critique of Pure Reason. Nevertheless, there are important lessons to be learned from this work about truth, lessons that apply to the contemporary debate on the nature and structure of truth and its theory. In this paper I suggest two such lessons. The first lesson concerns the structure of a substantive theory of truth as contrasted with a deflationist theory; the second concerns the structure of a correspondence theory of (...) truth. The first lesson warns us against conceiving of a substantive theory of truth in a way that led Kant to conclude that such a theory is unviable. In so doing it indirectly suggests what a viable substantive theory of truth would be like. The second lesson teaches us that a correspondence theory of truth need not be as naive and overly simplistic as it is usually thought to be, but can, and should be, far more complex. This lesson is based on a correspondence theory of truth incipient in the Critique, one whose structure reflects the complexity of the relation between mind and world in Kant’s theory. (shrink)

In the first Critique, Kant attempts to prove what we can call the "Principle of Intensive Magnitudes," according to which every possible object of experience will possess a determinate "degree" of reality. Curiously, Kant argues for this principle by inferring from a psychological premise about internal sensations (they have intensive magnitudes) to a metaphysical thesis about external objects (they also have intensive magnitudes). Most commentators dismiss the argument as a failure. In this article I give a reconstruction of Kant's argument (...) that attempts to rehabilitate the argument back into his broader transcendental theory of experience. I argue that we can make sense of the argument's central inference by appeal to Kant's theory of empirical intuition and by an analysis of the way in which Kant thinks sensory matter constitutes our most basic representations of objects. (shrink)

The author calls attention to and discusses certain basic but neglected and/or obscured features of Hegel's idealism. He treats these features as paradigmati cally sociological and uses them as a baseline with which to chart Hegel's critique of, and against which to measure, Kant's Critique of Pure Reason. Section 1 introduces Hegel's criticism of Kant's idealism; in contrast to his own objective idealism, transcendental idealism is individualistic. This criticism is elaborated in section 2, issuing in the quasi-Wittgensteinian indictment that Kant (...) cannot account for the possibility of language and human thought. Section 3 argues that Hegel's criticism that mind is social and that objectivity cannot be understood in isolation from social interaction amounts to a sociological critique of Kant. (shrink)

This article notes six advances in recent analytic Kant research: (1) Strawson's interpretation, which, together with work by Bennett, Sellars, and others, brought renewed attention to Kant through its account of space, time, objects, and the Transcendental Deduction and its sharp criticisms of Kant on causality and idealism; (2) the subsequent investigations of Kantian topics ranging from cognitive science and philosophy of science to mathematics; (3) the detailed work, by a number of scholars, on the Transcendental Deduction; (4) the clearer (...) understanding of transcendental idealism sparked by reactions to Allison's epistemic account; (5) the resulting need—prompted also by new studies of the thing in itself—to face up to the old question of the philosophical defensibility of such idealism; and (6) the active engagement with Kant's ethics and political philosophy that derives from Rawls's and others' work. (shrink)

As most of its readers are aware, the Critique of Pure Reason is primarily concerned not with empirical, but with a priori knowledge. For the most part, the Kant of the first Critique tends to assume that experience, and the knowledge that is based on it, is unproblematic. The problem with which he is concerned is that of how we can be capable of substantive knowledge independently of experience. At the same time, however, the notion of experience plays a crucial (...) role in the central arguments of the Critique. For, again as most readers of the Critique know, Kant aims to show how we can have synthetic a priori knowledge by showing that the categories, or pure concepts of the understanding, are conditions of the possibility of experience. This means that, whether or not Kant is concerned with the notion of experience for its own sake, his account of a priori knowledge carries with it at least some commitments regarding the character of experience. If the account of a priori knowledge is to be successful, then experience has to be the kind of thing for which the categories can, in principle, serve as conditions of possibility. More specifically, experience must involve not only the senses, but also thought or understanding, for otherwise the claim that it presupposes a certain specific set of concepts is simply unintelligible. And indeed at least some parts of the Critique, in particular the so-called subjective deduction in the first edition, and the briefer passages which correspond to it in the second edition, seem to be intended to show how this requirement is met. That is, they are concerned not so much with showing that experience is governed by the categories, as with elaborating a view of experience as involving conceptual activity überhaupt. (shrink)

The view that the content of experience is conceptual is often felt to conflict with the empiricist intuition that experience precedes thought, rather than vice versa. This concern is explicitly articulated by Ayers as an objection both to McDowell and Davidson, and to the conceptualist view more generally. The paper aims to defuse the objection in its general form by presenting a version of conceptualism which is compatible with empiricism. It proposes an account of observational concepts on which possession of (...) such a concept involves more than the ability for perceptual discrimination, but less than the capacity to employ the concept in inferences: it consists in the capacity to perceptually discriminate objects with the awareness that one is discriminating as one ought. This understanding of concept-possession allows us make sense of experiences' having conceptual content without supposing that the subject must grasp the relevant concepts prior to having those experiences. (shrink)

How do we form concepts like those of three, bicycle and red? According to Kant, we form them by carrying out acts of comparison, reflection and abstraction on information provided by the senses. Kant's answer raised numerous objections from philosophers and psychologists alike. "Kant e la formazione dei concetti" argues that Kant is able to rebut those objections. The book shows that, for Kant, it is possible to perceive objects without employing concepts; it explains how, given those perceptions, we can (...) form categories and empirical concepts; and it argues that theories like Kant's - abstractionist theories of concept formation - are more plausible than is often assumed. (shrink)

Las observaciones que Kant formula en sus obras críticas acerca de la existencia de la cosa en sí han dado lugar a importantes objeciones y agudas discusiones entre los intérpretes. En este trabajo proponemos una reflexión acerca de la posibilidad de establecer el estatus epistemológico correspondiente a dichas observaciones, haciendo uso del concepto kantiano de creencia doctrinal.

Nos proponemos abordar la tesis de la segunda antinomia. Primero, intentaremos demostrar que la tesis y su prueba sólo pueden versar sobre partes simples materiales de cuerpos extensos en el espacio, y no sobre sustancias simples inmateriales. En segundo lugar, intentaremos demostrar que en la tesis y su prueba intervienen una síntesis categorial y una síntesis empírica correspondientes a la categoría de cualidad, lo que conduce a afirmar que la prueba no procede por meros conceptos, sino que introduce cierta referencia (...) a la intuición. Dicha referencia será explicada a través de la síntesis empírica de realidad y confirmara que la tesis se refiere a partes simples corpóreas. (shrink)

El objetivo del presente artículo es ofrecer una interpretación de la doctrina del esquematismo de los conceptos empíricos y matemáticos presentada por Kant en su Crítica de la razón pura. Mostramos que los esquemas de los conceptos empíricos y matemáticos son procedimientos de síntesis gobernados por reglas conceptuales. Aunque no consideramos que esta doctrina kantiana carece de problemas, nuestro trabajo muestra que: 1) esos esquemas pueden distinguirse rigurosamente de sus correspondientes conceptos; 2) esos esquemas no son entidades superfluas. Estas conclusiones (...) se alcanzan mostrando que el contenido de un concepto determina la unidad de elementos sensibles que tiene que ser efectuada por un esquema en tanto procedimiento de síntesis. (shrink)

This paper examines Helmholtz's attempt to use empirical psychology to refute certain of Kant's epistemological positions. Particularly, Helmholtz believed that his work in the psychology of visual perception showed Kant's doctrine of the a priori character of spatial intuition to be in error. Some of Helmholtz's arguments are effective, but this effectiveness derives from his arguments to show the possibility of obtaining evidence that the structure of physical space is non-Euclidean, and these arguments do not depend on his theory of (...) vision. Helmholtz's general attempt to provide an empirical account of the "inferences" of perception is regarded as a failure. (shrink)