In focusing on the systematic deduction of the categories from a principle, Schulting takes up anew the controversial project of the eminent German Kant scholar Klaus Reich, whose monograph “The Completeness of Kant's Table of Judgments” made the case that the logical functions of judgement can all be derived from the objective unity of apperception and can be shown to link up with one another systematically. -/- Common opinion among Kantians today has it that Kant did not mean to (...) derive the functions of judgement, and accordingly the categories, from the principle of apperception. Schulting challenges this standard view and aims to resuscitate the main motivation behind Reich’s project. He argues, in agreement with Reich’s main thesis about the derivability of the functions of judgement, that Kant indeed does mean to derive, in full a priori fashion, the categories from the principle of apperception. -/- Schulting also shows that, given the general assumptions of the Critical philosophy, Kant's derivation is successful and that absent an account of the derivation of the categories from apperception, the B-Deduction cannot really be understood. -/- New edition. First published 2012 as „Kant’s Deduction and Apperception. Explaining the Categories" (Palgrave Macmillan). (shrink)

I examine central points in the 1787 deduction, Including the question of how kant can demonstrate his crucial claim that if I know via intuition "i", Then any element of "i"'s manifold is such that I am or can become conscious that that element is mine. I also consider the deduction's overall strategy, Kant's theory of synthesis and of our use of 'i', And some recent interpretations. See, Further, My 1981 "dialectica" transcendental-Object paper.

I critically examine one central line of reasoning in Mario Caimi's book »Kant's B Deduction« (Cambridge Publishing, 2014).

The argument of the Transcendental Deduction of the Categories in the Critique of Pure Reason is the deepest and most far-reaching in philosophy. In his new book, Robert Howell interprets main themes of the Deduction using ideas from contemporary philosophy and intensional logic, thereby providing a keener grasp of Kant's many subtleties than has hitherto been available. No other work pursues Kant's argument through every twist and turn with the careful, logically detailed attention maintained here. Surprising new (...) accounts of apperception, the concept of an object, the logical functions of thought, the role of the Metaphysical Deduction, and Kant's relations to his Aristotelian-Cartesian background are developed. Howell makes a precise contribution to the discussion of most of the disputed issues in the history of Deduction interpretation. Controversial in its conclusions, this book demands the attention of all who take seriously the task of understanding Kant's work and evaluating it dispassionately. (shrink)

I discuss three elements of Dennis Schulting’s new book on the transcendental deduction of the pure concepts of the understanding, or categories. First, that Schulting gives a detailed account of the role of each individual category. Second, Schulting’s insistence that the categories nevertheless apply ‘en bloc’. Third, Schulting’s defence of Kant’s so-called reciprocity thesis that subjective unity of consciousness and objectivity in the sense of cognition’s objective purport are necessary conditions for the possibility of one another. I endorse (...) these fascinating but unfashionable claims and sketch my own version of what they amount to, which is quite different to Schulting’s own construal. I point to some fundamental limitations and problems for Schulting’s position and argue that his project needs to be reshaped or at least reconceived in the face of them. Even if Schulting’s argument is sound, it does not provide a deduction, properly speaking, of the categories. (shrink)

Henry E. Allison presents an analytical and historical commentary on Kant`s transcendental deduction of the pure concepts of the understanding in the Critique of Pure Reason. He argues that, rather than providing a new solution to an old problem, it addresses a new problem, and he traces the line of thought that led Kant to the recognition of the significance of this problem in his 'pre-critical' period. In addition to the developmental nature of the account of Kant`s views (...) presented here, two distinctive features of Allison's reading of the deduction are a defense of Kant`s oft criticized claim that the conformity of appearances to the categories must be unconditionally rather than merely conditionally necessary and an insistence that the argument cannot be separated from Kant`s transcendental idealism. (shrink)

This chapter contains sections titled: Introduction Apperception Representations of Objects Universality and Necessity Logical Forms of Judgment and Categories The Second Step of the B‐Deduction A Final Word.

Kant’s Metaphysical Deduction of the Categories justifies their apriority, i.e. that their contents originate in the understanding itself, while the Transcendental Deduction justifies their objectivity, both in that they purport to represent objects of experience and that they do so successfully. The apriority of the categories, as explained in terms of acts of synthesis required for having sensible intuitions of objects, is justified by establishing their generic identity with logical functions of judgment, i.e. acts of judgment required (...) for referring concepts to objects. The objective purport of the categories is justified by establishing that sensible intuitions fall under them. To finally justify that the categories represent successfully, i.e. that the objects of our intuitions fall under them, it is established that the representations of space and time do, namely by showing that the features addressed in their Metaphysical Expositions, too, are to be explained in terms of acts of synthesis. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Kant's Transcendental Deduction by Alison LaywineKatherine DunlopAlison Laywine. Kant's Transcendental Deduction. Oxford: Oxford University Press, 2020. Pp. iv + 318. Hardback, $80.00.Alison Laywine's contribution to the rich literature on Kant's "Transcendental Deduction of the Categories" stands out for the novelty of its approach and conclusions. Laywine's declared "strategy" is "to compare and contrast" the Deduction with the Duisburg Nachlaß, an important (...) set of manuscript jottings from the 1770s (10). But her approach is also deeply informed by Kant's writings on metaphysics from the 1750s and 1760s; moreover, she gives attention to ancient Greek geometry and its importance for Kant's thought.I believe Laywine's most important interpretative claim is that the Transcendental Deduction's "final step" addresses "the question of how nature is possible" (210). Here, 'nature' is understood in what Kant calls the "formal sense," as "the totality of rules under which appearances must stand if they are to be thought as joined in one experience" (Prolegomena, §36; cf. B 165). This constitutes a novel answer to the problem posed in Dieter Henrich's landmark 1969 paper "The Proof Structure of the Transcendental Deduction" (Review of Metaphysics 22 [1969]: 640–59): how to understand §§21–26 of the (B-edition) Deduction as proving more than the thesis already stated in §20 (that the manifold in an intuition necessarily stands under the categories).Crucial support for Laywine's interpretation comes from §26 of the Deduction, which claims the possibility of cognizing objects "a priori through categories... as far as the laws of their combination are concerned, thus the possibility of as it were prescribing the law to nature and even making [nature] possible," is now "to be explained" (B 159). Kant does not use the term 'world' in this passage (as he does in Prolegomena §36). But Laywine contends that here the word 'nature' "has unmistakable, deliberate, cosmological connotations," and in fact "means 'world' in the sense of Kant's early cosmology": roughly, a whole unified by means of laws (12–13).The "cosmological" language of §26 does not recur in the following, officially concluding, section of the Deduction. So, we might ask whether Kant's explanation of how the understanding prescribes laws to nature is integral to the Deduction; Henry Allison, for instance, describes this explanation as an "appendix" (Kant's Transcendental Deduction: An Analytical-Historical Commentary [Oxford: Oxford University Press, 2015], 9). The question of whether it belongs integrally has bite because, as Laywine makes clear in her "Conclusion," the universal laws at issue are just the Analogies of Experience. Thus, the passage could be read as the "promissory note with a forward-looking reference to the System of Principles" that she finds missing from the Deduction (289). Laywine meets such worries by arguing that "the reappropriation [from the pre-Critical period] of the general cosmology is actually [End Page 162] doing... a lot of hard work" in the Deduction (13). This sustained argument comes to a head in chapter 4, which contends that each of the two steps into which Laywine divides the first half of the (B-edition) Deduction, treated in chapters 2 and 3 (respectively), relies on cosmological presuppositions.Chapter 2 analyzes the conception of knowledge as relation to an object that is asserted (in §17) to rely on the synthetic unity of apperception. Laywine traces this conception to the Duisburg Nachlaß's account of "exposition," which relates concepts a priori to appearances, in something like the way that geometrical construction relates them to pure intuition. (Laywine further connects the Latin term expositio to the Greek ekthesis, which expositio translates in the context of geometrical proof. She thereby gives the notion of ekthesis broader importance than does Jaakko Hintikka, who noted its relevance to Kant's philosophy of mathematics in "Kant on the Mathematical Method" [Monist 51 (1967): 352–75]. Laywine claims that Borelli's edition of Euclid could have been Kant's source for the term, but I doubt it was known to Kant and his contemporaries, since it is not among the editions cited by Christian Wolff; Commandino seems likelier to me. Chapter 2 is concerned to articulate the notion of... (shrink)

Dennis Schulting offers a thoroughgoing, analytic account of the first half of the Transcendental Deduction of the Categories in the B-edition of Kant's Critique of Pure Reason that is different from existing interpretations in at least one important aspect: its central claim is that each of the 12 categories is wholly derivable from the principle of apperception, which goes against the current view that the Deduction is not a proof in a strict philosophical sense and the standard (...) reading that in the Deduction Kant only gives an account of the global applicability of the categories to experience. This novel approach enables a reappraisal of Kant's controversial claim that transcendental self-consciousness is not only a necessary condition of objective experience but also sufficient for it. The book provides an extensive analysis of Kant's theory of transcendental apperception and also explains why the argument of the Transcendental Deduction is both a regressive and a progressive argument. (shrink)

In this chapter, I expound Hegel’s critique of Kant, which he first and most elaborately presented in his early essay Faith and Knowledge (1802), by focusing on the criticism that Hegel levelled against Kant’s (supposedly) arbitrary subjectivism about the categories. This relates to the restriction thesis of Kant’s transcendental idealism: categorially governed empirical knowledge only applies to appearances, not to things in themselves, and so does not reach objective reality, according to Hegel. Hegel claims that this restriction of knowledge (...) to appearances is unwarranted merely on the basis of Kant’s own principle of transcendental apperception, and just stems from Kant’s empiricist bias. He argues that Kant’s principle of apperception as the foundational principle of knowledge is in fact incompatible with his empiricism. Hegel rightly appraises the centrality of transcendental apperception for the constitution of objectivity. But he is wrong about its incompatibility with Kant’s empirical realism. By virtue of a misapprehension of the formal distinction between the accompanying ‘I think’, i.e. the analytical principle of apperception, and what Hegel calls “the true ‘I’” of the original-synthetic unity of apperception, Hegel unjustifiably prises apart the productive imagination, which is supposedly this “true ‘I’”, and the understanding, which is supposedly just a derivative, subjective form of the productive imagination; the latter, according to Hegel, is Reason or Being itself, and is the truly objective. This deflationary reading of the understanding, which hypostatises the imagination as the supreme principle, rests on a distortion of key elements of Kant’s theory of apperception. In this chapter, I show that Hegel’s charge of inconsistency against Kant, namely, Hegel’s claim that the principle of apperception as the highest principle of cognition does not comport with Kant’s restriction thesis, is the direct consequence of a psychological misreading of Kant’s subjectivism. (shrink)

Kant's distinction between mental passivity and mental activity is crucial for his "transcendental deduction" in the first "critique". I analyze his conception of active synthesis in cognitive situations and reconstruct the "deduction" in light of this analysis. The "deduction" is seen to argue from the possibility of cognition to objectivity of cognitions, "via" self-consciousness.

In the Critique of Fure Reason Kant distinguishes two sorts of conditions of knowledge. First, there are the space and time of pure intuition, introduced in the Transcendental Aesthetic. They are grounded in our dependence on a special sort of perceptual field for the location of objects. Second, there are pure concepts of the understanding, or categories, introduced in the Analytic. In one respect these are grounded in the logical function of the understanding in judgements, introduced in the first (...) chapter of the analytic of concepts: Clue to the Discovery of All Pure Concepts of the Understanding; in another respect, they are grounded in transcendental unity of apperception, which is introduced in the second chapter: Deduction of the Pure Concepts of the Understanding, or Transcendental Deduction. I shall be concerned with the latter and its contribution to the overall strategy of argument in the analytic. Within the Analytic, Kant distinguishes between an Analytic of Concepts and an Analytic of Principles. This corresponds to a traditional distinction between a doctrine of concepts and judgement. It is arguable that Kant's theory of concepts undermines this distinction. However, I shall not deal with that general issue, but with a more specific issue related to the first two chapters of the Analytic of Principles: the Schematism and the System of Principles. (shrink)

Kant’s transcendental philosophy of Kant is the metaphysics of possible experience related to the solution of the [semantic] problem set in his famous letter to M. Hertz (02.21.1772): “What is the ground of the relation of that in us which we call 'representation' to the object?” There are two possible ways to solve it: empiricism and apriorism, – and Kant chooses the second of them, thus making his “Copernican Revolution”. In the Preface to the 2nd ed. Critique Kant correlates (...) his Copernican turn/revolution with "altered method of our way of thinking [in metaphysics]" [BXVIII] and considers it as an analogue of the hypothetico-deductive scientific method of Copernicus – Galileo – Newton. The analysis of structure of the Copernican Revolution shows that it is possible to pick out two vectors: the empirical (from the thing-in-itself to representations) and the noumenal ones (from the transcendental unity of apperception [or transcendental object] to objects of experience). The introduction of an a priori vector (resp. a priori forms) means that Kant's conception is not empirical, but Kant’s keeping empirical vector says that it is compatible with empirical realism [A370–1]. Thus, Kantian transcendentalism is a synthesis of realism (basic level) and transcendental idealism (as a meta-level superstructure above it), whose task is to find out and analyze the transcendental conditions [possibility] of our knowledge of objects. (shrink)

This book is a study of the second-edition version of the 'Transcendental Deduction', which is one of the most important and obscure sections of Kant's Critique of Pure Reason. By way of a close analysis of the B-Deduction, Adam Dickerson makes the distinctive claim that the Deduction is crucially concerned with the problem of making intelligible the unity possessed by complex representations - a problem that is the representationalist parallel of the semantic problem of the unity (...) of the proposition. Along the way he discusses most of the key themes in Kant's theory of knowledge, including the nature of thought and representation, the notion of objectivity, and the way in which the mind structures our experience of the world. (shrink)

Kant's A-Edition objective deduction is naturally (and has traditionally been) divided into two arguments: an " argument from above" and one that proceeds " von unten auf." This would suggest a picture of Kant's procedure in the objective deduction as first descending and ascending the same ladder, the better, perhaps, to test its durability or to thoroughly convince the reader of its soundness. There are obvious obstacles to such a reading, however; and in this chapter I will argue (...) that the arguments from above and below constitute different, albeit importantly inter-related, proofs. Rather than drawing on the differences in their premises, however, I will highlight what I take to be the different concerns addressed and, correspondingly, the distinct conclusions reached by each. In particular, I will show that both arguments can be understood to address distinct specters, with the argument from above addressing an internal concern generated by Kant’s own transcendental idealism, and the argument from below seeking to dispel a more traditional, broadly Humean challenge to the understanding’s role in experience. These distinct concerns also imply that these arguments yield distinct conclusions, though I will show that they are in fact complementary. (shrink)

The deduction of categories in the 1781 edition of the Critique of the Pure Reason (A Deduction) has “two sides”—the “objective deduction” and the “subjective deduction”. Kant seems ambivalent about the latter deduction. I treat it as a significant episode of Kant’s thinking about categories that extended from the early 1770s to around 1790. It contains his most detailed answer to the question about the origin of categories that he formulated in the 1772 letter to (...) Marcus Herz. The answer is that categories are generated a priori through a kind of intellectual “epigenesis”. This account leaves unexplained why precisely such and such categories should be generated. While this observation caused Kant to worry about the hypothetical status of the subjective deduction in 1781, he would come to acquiesce in the recognition that the ground of the possibility of categories is itself inscrutable. I call this his “methodological skepticism”. (shrink)

The book addresses two main areas of Kant’s theoretical philosophy: the doctrine of transcendental idealism and various central aspects of the arguments from the Metaphysical and Transcendental Deductions, as well as the relation between the deduction argument and idealism. -/- Among the topics covered are the nature of objective validity, the role and function of transcendental logic in relation to general or formal logic, the possibility of contradictory thoughts, the meaning of the Leitfaden at A79 and (...) the unity of cognition, the two-steps-in-one-proof interpretation and categorial instantiation, categorial illusion, Strawson’s transcendental argument, the persistently perplexing question of the derivation of the categories, and the relation between apperception, objectivity, judgement, and idealism. -/- With regard to idealism in particular, the focus is on the metaphysical two-aspect interpretation and its problems, on the merits and demerits of the controversial phenomenalist reading of Kant’s idealism, and on the topic of subjectivism and epistemic humility. -/- In all of the aforementioned topics, the book presents wholly novel interpretations compared to the standard or mainstream interpretations. (shrink)

The deduction of categories in the 1781 edition of the Critique of the Pure Reason (A Deduction) has “two sides”—the “objective deduction” and the “subjective deduction”. Kant seems ambivalent about the latter deduction. I treat it as a significant episode of Kant’s thinking about categories that extended from the early 1770s to around 1790. It contains his most detailed answer to the question about the origin of categories that he formulated in the 1772 letter to (...) Marcus Herz. The answer is that categories are generated a priori through a kind of intellectual “epigenesis”. This account leaves unexplained why precisely such and such categories should be generated. While this observation caused Kant to worry about the hypothetical status of the subjective deduction in 1781, he would come to acquiesce in the recognition that the ground of the possibility of categories is itself inscrutable. I call this his “methodological skepticism”. (shrink)

That Wilfrid Sellars claims that the framework of persons is not a descriptive framework, but a normative one is about as well known as any claim that he makes. This claim is at the core of the famous demand for a synoptic image that closes, “Philosophy and the Scientific Image of Man,” makes its appearance at key moments in the grand argument of, “Empiricism and the Philosophy of Mind,” and is the capstone of Sellars’ engagement with Kant in, Science and (...) Metaphysics. Whereas mere things can be subject to ought-to-be rules—e.g. a clock ought to chime on the hour—to be a person, as Sellars understands it, is to be subject to ought-to-do rules—e.g. one ought to wind one’s clocks to chime on the hour. Prima facie, though, there is more to being a person than just being subject to ought-to-do rules. For example, on at least some common ways of using ‘person’ to be a person is to have a unified consciousness, i.e. to be a single subject of a manifold of experience persisting through time. Arguably, that is what Kant takes a person to be. What I hope to show here is that it is what Sellars takes a person to be too. I.e. the exciting twist here is that as Sellars sees it being a single subject of experience persisting through time is being subject to a particular kind of ought-to-do rules, namely, those concepts-qua-inferential-rules that are the means by which we represent the world of causally-related objects existing in space and persisting through time. I take Sellars’ reasons for holding this set of theses to be essentially Kantian, and so my procedure for explicating them will be to trace a single philosophical thread through both Kant’s and Sellars’ thinking surrounding these issues. I begin with the historical problematic to which Kant’s Transcendental Deduction is intended as an answer. By what right does one apply the pure a priori concepts of the understanding? As the necessary means for representing the analytic unity of apperception, i.e. for representing oneself as the single subject of experience persisting through time. That leads to a consideration of the question of what the temporally-discursive experiences are of which one is supposed to be the single subject, and what the nature of the relation is of these experiences to such a subject. Here Sellars provides the answer. The question is ill formed. There is no relation of experiences to a subject because experiences are not themselves things. Rather, ‘an experience’ is a nominalization of the verb ‘experiencing’, which is itself a description of the act of a person. That thesis, then, brings us squarely to the question of what the framework of persons is, and why Sellars is so confident that it is an ineliminable feature of any future iteration of the synoptic image of the world. The answer to the latter question is that descriptive images themselves (scientific or manifest) are constituted by the rules that govern them, and it is only persons that can be subject to such rules. So, in the end, we return to Kant’s claim in the Transcendental Deduction that our representation of a world of causally-related objects existing in space and persisting through time is the means by which one represents oneself as the single subject of experience persisting through time. The descriptions that the scientific image provides are only possible, and necessary, because of what Kant would call their “ultimate principle”: the framework of persons. (shrink)

The subject of this article is a powerful objection to the non-conceptualist interpretation of Kant’s transcendental deduction of the categories. Part of the purpose of the deduction is to refute the sort of scepticism according to which there are no objects of empirical intuition that instantiate the categories. But if the non-conceptualist interpretation is correct, it does not follow from what Kant is arguing in the transcendental deduction that this sort of scepticism is false. This (...) article explains and assesses a number of possible responses to this objection. (shrink)

In the Critique of Pure Reason (1781/1787), Kant sought to explain the objectivity of cognition by describing the operation of certain human cognitive activities. That is, in some sense Kant explained cognition's objectivity by appealing to features of the mind. A century later, the Marburg School Neo-Kantians Hermann Cohen and Paul Natorp would insist that philosophers must explain cognition's objectivity without appeal to the subject's mind. Once at the center of the Kantian account of objectivity, the mind had been expunged (...) from it. This shift was the emergence of anti-psychologism, the view that the mind has no place in philosophical accounts of cognition's objectivity. This dissertation offers an account of how that shift happened. Chapter 1 argues that a central section of Kant's Critique of Pure Reason, the Transcendental Deduction, is a description of a cognitive operation—namely, the apperception's synthesis of the manifold of sensible intuition. Because this operation is necessary, it determines the structures that a subject's cognition must conform to, and thus explains cognition's objectivity for Kant. But Kant's view that the mind is characterized by necessary cognitive operations was abandoned in the nineteenth century in favour of purely empirical conceptions of the mind. Chapter 2 argues that, in response to this change and in particular to the psychologism of the Back to Kant movement, Cohen developed an anti-psychologistic account of cognition's objectivity: for him, objectivity must be explained by appeal to the principles and laws of mathematics and pure natural science. But his account fails, since he does rot explain why those laws explain cognition's intersubjectivity. Chapter 3 examines Wilhelm Wundt's and Ernst Mach's attempts to articulate purely empirical conceptions of the mind, and to explain cognition's objectivity by appeal to the mind so conceived, as well as Hermann Lotze's anti-psychologism. Chapter 4 argues that, for Natorp, fundamental physical laws constitute the intersubjective content of cognition because they are invariant across space and time, and so different subjects can share representations of them despite having different points of view on the world. Natorp thus finally articulates a successful anti-psychologistic alternative to Kant's account of objectivity. (shrink)

In this article, I respond to critiques of my book Kant’s Radical Subjectivism: Perspectives on the Transcendental Deduction (London: Palgrave Macmillan, 2017). I address issues that are raised concerning objectivity, the nature of the object, the role of transcendental apperception and the imagination, and idealism. More in particular I respond to an objection against my reading of the necessary existence of things in themselves and their relation to appearances. I also briefly respond to a question that relates (...) to the debate on Kantian nonconceptualism, more in particular, the question whether Kant allows animals objective intentionality. Lastly, I respond to one objection against my reading of Hegel’s critique of Kant. (The copy uploaded here is an English translation of the original Dutch version that is published in the journal.). (shrink)

This book is a comprehensive exposition of the Transcendental Deduction of the Categories in both editions of Kant’s Critique of Pure Reason.

This paper seeks to show how Kant’s epistemological conception of the transcendental faculties of cognition relates to his ontological conception of the transcendental distinction between mind-dependent, ideal appearances (viz., empirical objects) and mind-independent, transcendentally real things in themselves, as they relate to the self. I engage the metaphysical foundations of Kant’s account of self-consciousness and how this account relates to the self as an empirically perceivable and conceptualizable object of observation. This paper also connects Kant’s work in the (...) Transcendental Deduction on the transcendental unity of apperception with Kant’s work on “clear” and “obscure” representations. (shrink)

In der Reihe werden herausragende monographische Untersuchungen und Sammelbände zu allen Aspekten der Philosophie Kants veröffentlicht, ebenso zum systematischen Verhältnis seiner Philosophie zu anderen philosophischen Ansätzen in Geschichte und Gegenwart. Veröffentlicht werden Studien, die einen innovativen Charakter haben und ausdrückliche Desiderate der Forschung erfüllen. Die Publikationen repräsentieren den aktuellsten Stand der Forschung.

From the second half of the last century, there has been a widespread view in the Anglophone world that Kant’s transcendental deduction (aka TD) aims to vindicate our common-sense view of the world as composed of public and objective particulars against some unqualified forms of skepticism. This widespread assumption has raised serious doubt not only about the success of TD but also about the very nature of its argument in both editions of the Critique. Yet, if there is (...) a connection between TD and global skepticism, the intriguing question is: Who is this skeptic? According to Strawson, “the skeptic” is a hypothesis of a purely sense-datum experience. In contrast, the fact that TD turns on the key notion of self-consciousness has induced several other scholars to assume that the skeptic is no none but a Cartesian external-world skeptic. None of those readings find textual support or are compatible with the very structure of the first Critique. The question is: Does this mean that TD aims only to undermine empiricism, as Guyer suggests? I do not believe so. I am pretty convinced that TD addresses a peculiar form of global skepticism, namely “Hume’s challenge to reason.” Assuming that we cognize (erkennen) and experience (erfahren) appearances as objects as a requirement of Newtonian physics, TD aims to provide a justification of the principle that nature is uniform that is superior to Hume’s justification. (shrink)

The aim of this article is to trace the meaning that Immanuel Kant assigns to the concept of transcendental apperception and to present its role in the second edition of the Transcendental Deduction in his Critique of Pure Reason. It will be shown that the doctrine of transcendental apperception resolves some problematic features of the theories of consciousness in the traditions of Rationalism and Empiricism. In this regard, Kant’s transcendental apperception will be examined in contrast (...) with the concepts of inner sense (John Locke and David Hume), Cogito (René Descartes), and intellectual intuition (Gottfried Leibniz). This comparative approach will allow us to gain a clearer understanding of the meaning of transcendental apperception. Finally, its role in the justification of the pure concepts of understanding will be considered. (shrink)

This paper deals with a foundational aspect of Integrated Information Theory of consciousness: the nature of the relation between the axioms of phenomenology and the postulates of cause-effect power. There has been a lack of clarity in the literature regarding this crucial issue, for which IIT has received much criticism of its axiomatic method and basic tenets. The present contribution elucidates the problem by means of a categorial analysis of the theory’s foundations. Its main results are that: IIT has a (...) set of nine fundamental concepts of reason, called categories, which constitute its categorial lexicon and through which it formulates a system of principles incorporating the axioms, the postulates, and the central identity; and the connection between the axioms and postulates is grounded by their common root in this categorial lexicon, the categories of which find their justification by means of a phenomenological and transcendental deduction. Some further results are the unique origin of axioms and postulates in the categories; the distinction between conceptual and formalized postulates; a clarification of the uniqueness problem of categorial lexica in general; and an IIT account of objectivity by explicating how the physical is defined by means of categories. All of this is put to use against various criticism targeting IIT’s theoretical core. If successful, the proposed interpretation illuminates a central issue in the contemporary study of consciousness and contributes to an environment of mutual understanding between defenders and critics of the theory. (shrink)

In this chapter, I show that there is at least one crucial, non-short, argument, which does not involve arguments about spatiotemporality, why Kant’s subjectivism about the possibility of knowledge, argued in the Transcendental Deduction, must lead to idealism. This has to do with the fact that given the implications of the discursivity thesis, namely, that the domain of possible determination of objects is characterised by limitation, judgements of experience can never reach the completely determined individual, i.e. the thing (...) in itself or the unlimited real, but only objects as objects of possible experience. As such, it can be shown by reference to a key argument from Kant, that Hegel’s famous criticism that Kant is not licensed, on the basis of his core arguments concerning the original-synthetic unity of apperception, to restrict our knowledge to appearances, is mistaken on purely systematic grounds. More specifically, I argue that idealism follows already from the constraints that the use of the categories, in particular the categories of quality, places on the very conceivability of things in themselves. My claim is that, although it is not only possible but also necessary to think things in themselves, it does not follow that by merely thinking them we have a full grasp of the nature of things in themselves, as some important commentators claim we have. We must therefore distinguish between two kinds of conceiving of things in themselves: conceiving in the standard sense of ‘forming the notion of’, and conceiving in the narrow sense of ‘having a determinate intellectual grasp’. So although we must be able notionally to think things in themselves, as the grounds of their appearances, we cannot even conceive, through pure concepts, of how they are in themselves in any determinate, even if merely intellectual, sense. To put it differently, we cannot have a positive conception of things in themselves (this is in line with Kant’s distinction between noumena in the negative and positive senses; cf. B307–9). For support, I resort to a much overlooked chapter in the Critique, concerning the transcendental Ideal, where Kant discusses what it is for a thing to be a thing in itself proper, namely, something that is thoroughly determined. This concerns the real ontological conditions of things, which are not satisfied by the modal categories alone, namely, their existence conditions. I claim that the chief reason why, given Kant’s view of determinative judgement, we cannot determine a thing in itself is because of two connected reasons: (1) a thing in itself is already fully determined and therefore not further determinable and (2) we cannot possibly determine all of the thing’s possible determinations. In this context, I also discuss the notion of material (not: empirical) synthesis—of which Kant speaks in the chapter on the transcendental Ideal—which must be presupposed as the ground of the formal a priori synthesis that grounds possible experience. This material synthesis, which is an idea of reason that defines a thing as thoroughly determined with regard to all of its possible predicates and has mere regulative status, can by implication not be determined by the forms of the understanding, which synthesise only a limited set of predicates. As a result, given this definition of ‘thing in itself’, any object (appearance) as at best44 a limited set of determinations of the thing can never be numerically identical to the thing in itself as thoroughly determined individual. This undercuts a standard assumption about the identity relation between appearances and things in themselves in many contemporary interpretations of Kant’s transcendental idealism. (shrink)

James Van Cleve has argued that Kant’s Transcendental Deduction of the categories shows, at most, that we must apply the categories to experience. And this falls short of Kant’s aim, which is to show that they must so apply. In this discussion I argue that once we have noted the differences between the first and second editions of the Deduction, this objection is less telling. But Van Cleve’s objection can help illuminate the structure of the B (...) class='Hi'>Deduction, and it suggests an interesting reason why the rewriting might have been thought necessary. (shrink)

In this paper, I aim to shed light on the use of transcendental deductions, within demonstrations of aspects of Wittgenstein's early semantics, metaphysics, and philosophy of mathematics. I focus on two crucial claims introduced by Wittgenstein within these transcendental deductions, each identified in conversation with Desmond Lee in 1930-31. Specifically, the claims are of the logical independence of elementary propositions, and that infinity is a number. I show how these two, crucial claims are both demonstrated and subsequently deployed (...) by Wittgenstein within a series of transcendental deductions, a series which begins with extensionalism as a generalized condition of sense on propositions, and in the context of which are then derived various, further, significant and unobvious presuppositions generated by that generalized condition of sense. In addition to clearing up deductions of these two, aforementioned claims, I also elucidate deductions of the subsistence of objects, and of logical space as an infinite totality. (shrink)

Kant does not provide clear-cut definitions of apperception, consciousness, and self-consciousness and everywhere uses these terms as synonyms, which creates the problem of the relationship between these faculties. The importance of this problem stems from the colossal significance of each of the above-mentioned faculties which are intimately connected with Kant’s formulation of the key tasks of transcendental philosophy. The prime task is to discover the categories of understanding and to prove the legitimacy of their use, a task that is (...) further complicated by the difference between the editions of the Critique of Pure Reason in terms of the argumentation in the section on the deduction of categories and Kant’s concept of apperception. Accordingly, the author seeks to clarify the purpose of each of the above-mentioned faculties and to establish their inter-relationship. To this end the author analyses the functional roles of consciousness, self-consciousness and apperception in solving the main tasks of the first Critique. It turns out that consciousness is a reflexive cognitive capacity which provides access to representations in our soul and allows us to distinguish them and to connect them. Self-consciousness is the mode of the functioning of consciousness which makes it possible to study three objects of consciousness: internal and external representations of the subject, the synthetic activity of understanding and our soul. Apperception is the Latin synonym of the concept of Selbstbewußtsein and is aimed at studying the unity of our representations. Because Kant distinguishes multiple kinds of unity, there are different names for apperception. Kant uses the concept of Apperzeption as a synonym of self-consciousness because his concept of consciousness follows the Leibniz-Wolffian tradition. (shrink)

In this paper, I argue that in the sense of greatest epistemological concern for Kant, empirical cognition is “rational sensory discrimination”: the identification or differentiation of sensory objects from each other, occurring through a capacity to become aware of and express judgments. With this account of empirical cognition, I show how the transcendental deduction of the first Critique is most plausibly read as having as its fundamental assumption the thesis that we have empirical cognition, and I provide evidence (...) that Kant understood Hume as granting this assumption. (shrink)

The goal of Kant’s transcendental deduction is to demonstrate the reciprocal implication of self-consciousness and objectivity. Kant’s argument is that the subject possesses a priori cognizance concerning the thoroughgoing identity of itself and that this entails a priori for the subject cognition of the manners in which the combining activities of individual cognitive states must and can occur if its self-identity is to be maintained. Kant proposes that the cognitive subject makes judgments concerning its identity, and then shows (...) that these judgments must subscribe to formal rules of synthesis relating cognitive representations, for which the subject affirms such identity, to a domain of empirical things-in-themselves or enduring objects. (shrink)

Fregean predicates applied to Fregean objects are merely defined by a `timeless' deductive order of sentences. They cannot provide sufficient structure in order to explain how names can refer to objects of intuition and how predicates can express properties of substances that change in time. Therefore, the accounts of Wilson and Quine, Prior and Brandom for temporal judgments fail — and a new reconstruction of Kant's transcendental logic, especially of the analogies of experience, is needed.

The aim of this paper is to focus on certain characterizations of “I think” and the “transcendental subject” in an attempt to verify a connection with certain metaphysical characterizations of the thinking subject that Kant introduced in the critical period. Most importantly, two distinct meanings of “I think” need be distinguished: (1) in the Transcendental Deduction “I think” is the act of apperception; (2) in the Transcendental Deduction and in the section of Paralogisms “I think” (...) is taken in its representational nature. It proves helpful to interpret the “transcendental subject” in formal terms as a concept that, mutatis mutandis, has the same function of the concept of the “transcendental object.”. (shrink)

I first criticize strawson's account of the transcendental deduction, And then argue that wittgenstein's considerations (in his later work) of the rule-Governed nature of judgment can be used to reconstruct a valid argument for a certain kind of objectivity, Which excludes solipsims. I suggest how kant's talk of synthesis can be reinterpreted in the light of this, As indeed can the doctrine of empirical realism and transcendental idealism.

In his Critique of Pure Reason, Kant makes the interesting, but obscure claim that the normative constraints that constitute the objectivity of our representations have their source ultimately in transcendental apperception. Keller focuses on this claim. He interprets Kant’s condition of transcendental apperception as the claim that I must represent myself in an impersonal way, and he argues that impersonal self-consciousness is a necessary condition under which I can distinguish my particular take on things from the way things (...) are independently of my own perspective on them. He elaborates his interpretation and defense of the condition of transcendental self-consciousness by discussing its role in each of the central arguments in the Critique in which the notion importantly figures: the transcendental deduction in both the first edition and in the second, the Analogies of Experience, the Paralogisms, and the second-edition refutation of idealism. (shrink)

Overview -- Locke's internal sense and Kant's changing views -- Personal identity amd its problems -- Rationalist metaphysics of mind -- Consciousness, self-consciousness, and cognition -- Strands of Argument in the Duisburg Nachlass -- A transcendental deduction for a priori concepts -- Synthesis : why and how? -- Arguing for apperception -- The power of apperception -- "I-think" as the destroyer of rational psychology -- Is Kant's theory consistent? -- The normativity objection -- Is Kant's thinker (as such) (...) a free and responsible agent? -- Kant our contemporary. (shrink)

The aim of this paper is to exhibit some important features of the two versions of the deduction. In the first edition, Kant emphasizes the role of imagination as an autonomous faculty; in the second, On the contrary, Imagination, Though keeping its synthetic function, Is subordinated to the understanding. This reversal in the role of imagination is bound up to a paradoxical conception of the object which pervades the two editions of the "critique". The deduction should be conceived (...) as a way out of the paradox, Each edition favoring one alternative against the other. The role of the subject is correlative of the way the object is conceived: this article shows how german idealism radicalized kant's position in the first edition, And positivism, The second version, Though both were led to depart from kant's general requirement that knowledge was a result of the equilibrium of concepts and intuitions. (shrink)

The purpose of the third section of Kant’s Groundwork is to prove the possibility of the categorical imperative. In the end of the second section, Kant establishes that a proof like this is necessary to show that morality is ‘something’ and ‘not a chimerical idea without any truth’ or a ‘phantom’. Since the categorical imperative was established as a synthetic a priori practical proposition, in order to prove its possibility it is necessary ‘to go beyond cognition of objects to a (...) critique of the subject, that is, of pure practical reason’. Kant names this kind of proof a deduction. The present paper intends to show the argument whose purpose is to justify the categorical imperative; show that the argument is a transcendental deduction; present the argument as it is reconstructed by Allison, and show that, although it seems compelling, the position of the commentator could not be accepted by Kant himself. (shrink)

talk Oslo-Kant congress. In this paper, I explain why for Kant self-consciousness is intimately related to objectivity, how this intimacy translates to real objects, what it means to make judgements about objects, and what idealism has got to do with all of this.

Major recent interpretations of Kant's first "critique" (wolff, Strawson, Bennett) have taken his transcendental deduction to be an argument from the fact of consciousness to the existence of an objective world. I argue that it is unclear such an argument can succeed and there are overwhelming reasons to believe kant understood his deduction as having a very different form, namely as moving from the premise that there is empirical knowledge to the conclusion that there are universally valid (...) pure categories. Detailed support for this contention is offered in an analysis of the second edition version of the deduction. (shrink)

Name der Zeitschrift: Kant-Studien Jahrgang: 108 Heft: 4 Seiten: 589-600.

I take up Kant's remarks about a " transcendental deduction" of the "concepts of space and time". I argue for the need to make a clearer assessment of the philosophical resources of the Aesthetic in order to account for this transcendental deduction. Special attention needs to be given to the fact that the central task of the Aesthetic is simply the "exposition" of these concepts. The Metaphysical Exposition reflects upon facts about our usage to reveal our (...) commitment to the idea that these concepts refer to pure intuitions. But the legitimacy of these concepts still hangs in the balance: these concepts may turn out to refer to nothing real at all. The subsequent Transcendental Exposition addresses this issue. The objective validity of the concepts of space and time, and hence their transcendental deduction, hinges on careful treatment of this last point. (shrink)