Perceptual representations have distal content: they represent external objects and their properties, not light waves or retinal images. This basic fact presents a fundamental problem for ‘input-oriented’ theories of perceptual content. As I show in the first part of this paper, this even holds for what is arguably the most sophisticated input-oriented theory to date, namely Karen Neander's informational teleosemantics. In the second part of the paper, I develop a new version of informational teleosemantics, drawing partly on empirical psychology, and (...) partly on philosophical considerations. I shall argue that this version has all the virtues of Neander's original theory, but also the further crucial advantage of being able to account for the distality of perceptual content. (shrink)

Perceptual constancies have been studied by psychologists for decades, but in recent years, they have also become a major topic in the philosophy of mind. One reason for this surge of interest is Tyler Burge’s (2010) influential claim that constancy mechanisms mark the difference between perception and mere sensitivity, and thereby also the difference between organisms with genuine representational capacities and ‘mindless’ beings. Burge’s claim has been the subject of intense debate. It is becoming increasingly clear, however, that we cannot (...) hope to settle this debate (as well as related debates in the philosophy of mind) without a clear and substantive theoretical account of what perceptual constancies are. In the first part of this paper, I argue that the standard definitions in the literature fall short of providing such an account. Still, as I aim to show in the second part of the paper, by taking a closer look at some of the paradigm examples, it is possible to construct a plausible general account of perceptual constancies that is both clear and substantive, and that can serve as a firm foundation for settling debates like the dispute about Burge’s ‘constancy mechanism criterion’ for perception. (shrink)

Teleosemantic theories of representation are often criticized as being “too liberal”, i.e. as categorizing states as representations which are not representational at all. Recently, a powerful version of this objection has been put forth by Tyler Burge. Focusing on perception, Burge defends the claim that all teleosemantic theories apply too broadly, thereby missing what is distinctive about representation. Contra Burge, I will argue in this paper that there is a teleosemantic account of perceptual states that does not fall prey to (...) this problem, and that we can arrive at this account by combining some of Burge’s insights with a producer-oriented version of teleosemantics. The resulting theory turns out to be attractive and perfectly coherent. By contrast, the coherence of Burge’s own anti-teleosemantic approach becomes quite doubtful under closer examination—or so I will argue. (shrink)

Fred Dretske’s account of mental causation, developed in Explaining Behavior and defended in numerous articles, is generally regarded as one of the most interesting and most ambitious approaches in the field. According to Dretske, meaning facts, construed historically as facts about the indicator functions of internal states, are the structuring causes of behavior. In this article, we argue that Dretske’s view is untenable: On closer examination, the real structuring causes of behavior turn out to be markedly different from Dretske’s meaning (...) facts. Our argument proceeds in three steps. First, we set forth the problem of meaning individuation: We argue that the proposal that meaning facts are structuring causes of behavior commits Dretske to a very fine-grained individuation of meanings that is deeply counterintuitive. In a second step, we show that even these finely individuated meaning facts cannot do the job that they are supposed to do, since information facts—which are constitutive of, but distinct from Dretske’s meaning facts—are better candidates for the role of structuring causes. Finally, we argue that it is not even information facts, but facts of co-instantiation which are the real structuring causes of behavior. In concluding, we briefly consider the options that are left for Dretske if our arguments succeed. (shrink)

According to standard teleosemantics, intentional states are selectional states. This claim is put forward not as a conceptual analysis, but as a ‘theoretical reduction’—an a posteriori hypothesis analogous to ‘water = H2O’. Critics have tried to show that this meta-theoretical conception of teleosemantics leads to unacceptable consequences. In this paper, I argue that there is indeed a fundamental problem with the water/H2O analogy, as it is usually construed, and that teleosemanticists should therefore reject it. Fortunately, there exists a viable alternative (...) to the water/H2O model which avoids the fundamental problem, while explaining the a posteriori character of teleosemantics equally well. (shrink)

This Element provides a comprehensive introduction to contemporary theories of mental content. After clarifying central concepts and identifying the questions that dominate the current debate, it presents and discusses the principal accounts of the nature of mental content (or mental representation), which include causal, informational, teleological and structuralist approaches, alongside the phenomenal intentionality approach and the intentional stance theory. Additionally, it examines anti-representationalist accounts which question either the existence or the explanatory relevance of mental content. Finally, the Element concludes by (...) considering some recent developments in the debate about mental content, specifically the “explanatory turn” and its implications for questions about representations in basic cognitive systems and the representational character of current empirical theories of cognition. (shrink)

Truthmakers are supposed to explain the truth of propositions, but it is unclear what kind of explanation truthmakers can provide. In this paper, I argue that ‘truthmaker explanations’ conflate two different explanatory projects. The first project is essentially concerned with truth, while the second project is concerned with reductive explanation. It is the latter project, I maintain, which is really central to truthmaking theory. On this basis, a general account of truthmaking can be formulated, which, when combined with a specific (...) theory of reduction (the ‘conceptual entailment approach’), yields a new analysis of truthmaking. This analysis is intuitively appealing and avoids the problem of necessary truths, which poses a serious obstacle for standard accounts. (shrink)

The notion of grounding has gained increasing acceptance among metaphysicians in recent years. In this paper, I argue that this notion can be used to formulate a very attractive version of (property) nominalism, a view that I call ‘grounding nominalism’. Simplifying somewhat, this is the view that all properties are grounded in things. I argue that this view is coherent and has a decisive advantage over competing versions of nominalism: it allows us to accept properties as real, while fully accommodating (...) nominalist intuitions. Finally, I defend grounding nominalism against several seemingly troublesome objections. (shrink)

How do frogs represent their prey? This question has been the focus of many debates among proponents of naturalistic theories of content, especially among proponents of teleosemantics. This is because alternative versions of the teleosemantic approach have different implications for the content of frog representations, and it is still controversial which of these content ascriptions (if any) is the most adequate. Theorists often appeal to intuitions here, but this is a dubious strategy. In this paper, I suggest an alternative, empirical (...) test for theories of content. I propose that we should examine whether a theory generates content ascriptions that fit with our best scientific explanations of animal behavior. I then focus on the most prominent version of teleosemantics, Ruth Millikan’s consumer-oriented approach, and argue that it fails the empirical test in the frog case, since it yields a content ascription that (i) does not include properties that should be included (namely, being small, dark and moving ) and (ii) includes a property that should not be included (namely, being frog food ). This is an important result in itself, but it also demonstrates by way of example how progress can be made in the complex debate about theories of content. (shrink)

Truthmaker theorists hold that propositions about higher-level entities (e.g. the proposition that there is a heap of sand) are often made true by lower-level entities (e.g. by facts about the configuration of fundamental particles). This generates a problem: what should we say about these higher-level entities? On the one hand, they must exist (since there are true propositions about them), on the other hand, it seems that they are completely superfluous and should be banished for reasons of ontological parsimony. Some (...) truthmaker theorists—most prominently David Armstrong—have tried to solve this puzzle by arguing that these entities are ‘an ontological free lunch’, i.e. real existents that are still ‘no addition of being’. This answer is prima facie attractive, but I argue in this paper that the standard approaches to truthmaking—modal theories and grounding theories—are unable to vindicate the doctrine of the ontological free lunch, and thus fail to solve the problem of higher-level entities. Fortunately, there is a non-standard account of truthmaking available, the reductive explanation account, which succeeds where the standard approaches fail. (shrink)

Liberal representationalism is the view that even some internal states of very simple organisms like plants or bacteria count as genuine representations. This view has been heavily criticized by many authors, including myself. In a recent paper, Marc Artiga attempts to defend liberal representationalism against these criticisms. One of his main targets is an argument of explanatory exclusion that he ascribes to Burge, Ramsey, Rescorla, Sterelny and me (among others). In this paper, I reply to Artiga by distinguishing the exclusion (...) argument that he focuses on from what is, in my view, the real explanatory challenge for liberal representationalism, and I argue that none of the considerations put forward by Artiga in defense of the liberal view provide an adequate answer to this challenge. (shrink)

1. IntroductionIn What Biological Functions Are and Why They Matter, Justin Garson offers a novel theory of biological functions, the generalized selected effects (GSE) theory.1 He presents the theory in a clear and comprehensive way, defends it against various objections and applies it to different areas of philosophy, including the philosophy of psychiatry, the debate about mechanisms and the debate about teleosemantic theories of mental content.2Like other proponents of the aetiological approach to functions, Garson maintains that a trait’s biological functions (...) are grounded in its selectional history. However, his GSE theory differs from standard versions of the aetiological approach – so-called selected effects (SE) theories – in a crucial respect: while SE theories assume that all biological functions must ultimately be grounded in phylogenetic processes of natural selection or other (closely analogous) processes of differential reproduction (Millikan 1984: 15–82, Neander 1991, Godfrey-Smith 1994), the GSE theory allows that functions may also be grounded in processes of differential retention (see §2 for details). Garson forcefully argues that this broader account is theoretically well-motivated and has significant advantages over standard SE accounts when it comes to accommodating certain important classes of ontogenetically determined functions. (shrink)

The compatibilism debate revolves around the question whether moral responsibility and free will are compatible with determinism. Prima facie, this seems to be a substantial issue. But according to the triviality objection, the disagreement is merely verbal: compatibilists and incompatibilists, it is maintained, are talking past each other, since they use the terms “free will” and “moral responsibility” in different senses. In this paper I argue, first, that the triviality objection is indeed a formidable one and that the standard replies (...) to it are unconvincing. This, however, does not mean that the objection succeeds. Starting with the debate about moral responsibility, I attempt to show that there is an account of moral responsibility which enables us to defend the compatibilism debate against the charge of triviality—namely, the normative conception of moral responsibility. If “moral responsibility” is defined in normative terms, then we cannot distinguish between a compatibilist and an incompatibilist sense of “moral responsibility”, because such a disambiguation would be inconsistent with the essential action-guiding force of normative expressions. Finally, I examine how the normative conception of moral responsibility can help us to defend the free will debate against the triviality objection and draw some general conclusions. (shrink)

Menschen glauben aus den unterschiedlichsten Gründen an Gott. Aber ist dieser Glaube rational gerechtfertigt? In diesem Band streiten führende Religionsphilosoph/-innen um die Frage, ob die besten Gründe für oder gegen den Theismus sprechen. Einige Beiträge unterziehen klassische Argumente für bzw. gegen die Existenz Gottes einer neuen Betrachtung. Andere gehen der Frage nach, welche Bedingungen eigentlich erfüllt sein müssen, damit die Überzeugung, Gott existiere, als vernünftig angesehen werden kann. Gelten hier dieselben Standards wie bei Überzeugungen über die Existenz von Quasaren? Oder (...) haben religiöse Überzeugungen einen besonderen epistemologischen Status? Und ist es rational zulässig, religiöse Erfahrungen oder tradierte Offenbarungen als Gründe für religiöse Überzeugungen anzuführen? Mit Beiträgen von Ansgar Beckermann, Katherine Dormandy, Franz von Kutschera, Winfried Löffler, Herman Philipse, Peter Schulte, Holm Tetens und Christian Weidemann. (shrink)

Desires, or directive representations, are central components of human and animal minds. Nevertheless, desires are largely neglected in current debates about the naturalization of representational content. Most naturalists seem to assume that some version of the standard teleological approach, which identifies the content of a desire with a specific kind of effect that the desire has the function of producing, will turn out to be correct. In this paper I argue, first, that this common assumption is unjustified, since the standard (...) approach is in fact deeply problematic. Secondly, I propose an alternative account of the content of desires which, while generating plausible and determinate content ascriptions, avoids the main problem that plagues the standard approach, and is also preferable on other grounds. (shrink)

Sensory perceptions represent things in the outside world. This mundane fact raises a major problem for naturalistic theories of content: the ‘distality problem’. In a previous paper for this journal, I presented a solution to this problem which makes central appeal to constancy mechanisms. Justin Garson, also in this journal, recently criticized my solution and suggested a Dretskean alternative to it. Here, I defend my proposal by arguing, first, that Garson's criticisms ultimately miss the mark, and secondly, that his Dretskean (...) alternative is not viable, because it faces two fundamental problems: the empirical problem and the problem of changing response functions. (shrink)

Die vor allem unter der Bezeichnung Gestalt-Psychologie bekanntgewordeneGestalttheorie der Berliner Schule war lange Zeit vielen zu Unrecht nur für ihreBeiträge zur Wahrnehmungspsychologie ein Begriff. In letzter Zeit werden jedochdiesseits und jenseits des Atlantiks zunehmend die frühen gestalttheoretischenAnsätze für eine psychotherapierelevante Lehre des gesunden und gestörtenmenschlichen Erlebens und Verhaltens wiederentdeckt und neu aufgegriffen. Dervorliegende Sammelband stellt drei exemplarische frühe Beiträge zurPsychopathologie vor, die noch vom Begründer der Gestalttheorie MaxWertheimer geprägt wurden. Anhand der Analyse der paranoischenEigenbeziehung und Wahnbildung, der Manie und der (...) schizophrenen Denkstörungdemonstrieren sie eindrucksvoll die spezifische Herangehensweise undFruchtbarkeit des ganzheitlichen systemtheoretischen Ansatzes der Gestalttheorieauf dem Gebiet psychischer Störungen. Im Anschluß diskutierenPsychotherapeuten und Psychiater aus Deutschland, Österreich und den USA dieAktualität und Relevanz dieser Ansätze für die psychotherapeutischeKrankheitslehre und Praxis. (shrink)

"Menschen glauben aus den unterschiedlichsten Gründen an Gott. Aber ist dieser Glaube rational gerechtfertigt? In diesem Band streiten führende Religionsphilosoph/-innen um die Frage, ob die besten Gründe für oder gegen den Theismus sprechen. Einige Beiträge unterziehen klassische Argumente für bzw. gegen die Existenz Gottes einer neuen Betrachtung. Andere gehen der Frage nach, welche Bedingungen eigentlich erfüllt sein müssen, damit die Überzeugung, Gott existiere, als vernünftig angesehen werden kann. Gelten hier dieselben Standards wie bei Überzeugungen über die Existenz von Quasaren? Oder (...) haben religiöse Überzeugungen einen besonderen epistemologischen Status? Und ist es rational zulässig, religiöse Erfahrungen oder tradierte Offenbarungen als Gründe für religiöse Überzeugungen anzuführen? Mit Beiträgen von Ansgar Beckermann, Katherine Dormandy, Franz von Kutschera, Winfried Löffler, Herman Philipse, Peter Schulte, Holm Tetens und Christian Weidemann."-- Back cover. (shrink)

Morality and rationality are both normative: the moral claim “you ought to help others” is a genuine normative judgment, as well as the rational maxim “you ought to brush your teeth twice a day”. But it seems that there is a crucial difference these two judgments. In the first part of this paper, I argue that this difference is to be understood as a difference between two kinds of normativity: demanding and recommending normativity. But the crucial task is, of course, (...) to explain the difference. In the second part of this paper, I suggest that metaethical expressivists can provide a good explanation: by extending the analysis of ordinary (non-normative) demands and recommendations to normative judgments, they can formulate a convincing account that captures the key differences between morality and rationality. (shrink)

It is often claimed that Realism about universals is problematic because it cannot account for the relation between particulars and universals without falling prey to ,,Bradley's regress". In this article, I consider four different versions of this regress argument (the semantic regress, the explanatory regress, the ,One over Many' regress, and the truthmaker regress), each based on a different ,regress-generating' assumption. I argue that none of these arguments succeeds in refuting Realism. Still, I contend that two interesting conclusions can be (...) drawn from the discussion. First, ,Bradleyan' regress problems show that some arguments for Realism have to be abolished because they involve ,regress-generating' assumptions. Second, these problems suggest that Realists about universals should opt for a nominalistic treatment of the ,exempflification relation'. As it turns out, this account of exemplification has the further advantage of being more in line with a science-oriented metaphysics than all the traditional alternatives. German Es wird oft behauptet, dass der Universalienrealismus problematisch ist, weil er die Beziehung zwischen Partikularen (Einzeldingen) und Universalien nicht erklären kann, ohne ,,Bradleys Regress zum Opfer zu fallen. In diesem Artikel betrachte ich vier verschiedene Versionen des Regresses (den semantischen Regress, den explanatorischen Regress, den ,,One over Many-Regress und den Wahrmacher-Regress), die alle von unterschiedlichen ,,regress-generie-renden Voraussetzungen ausgehen. Ich argumentiere dafür, dass keines dieser Regressargumente den Universalienrealismus widerlegt. Dennoch, so behaupte ich, können aus der Diskussion zwei interessante Schlussfolgerungen gezogen werden: Erstens zeigen ,Bradleysche' Regressproblem, dass einige Argumente für den Universalienrealismus aufgegeben werden müssen, weil sie sich auf ,,regress-generierende Voraussetzungen stützen; zweitens legen diese Probleme nahe, dass sich der Universalienrealist bei der Behandlung der ,,Exemplifikationsrelation für eine nominalistische Strategie entscheiden sollte. Wie sich herausstellt, hat diese Analyse von Exemplifikation zudem den Vorteil, besser zu einer wissenschaftsorientierten Metaphysik zu passen als die traditionellen Alternativen. (shrink)

Naturalisten stehen heute vor zwei großen Herausforderungen: Sie müssen zunächst präzisieren, was sie mit dem Ausdruck „Naturalismus“ meinen, und ihre Position anschließend plausibel begründen. Gegner des Naturalismus haben in den letzten Jahren immer wieder zu zeigen versucht, dass der Naturalist diesen Herausforderungen nicht gerecht werden kann. Ich argumentiere in diesem Artikel dafür, dass traditionelle Formulierungen der Naturalismusthese tatsächlich problematisch sind, dass es aber einen Ausweg für den Naturalisten gibt: Er kann natürliche Entitäten durch ihre besondere Beziehung zu physikalischen Tatsachen charakterisieren. (...) Als Kandidaten für diese besondere Beziehung kommen drei Relationen in Frage: Begriffliche Ableitbarkeit, Identität und Realisierung . Ich argumentiere dafür, dass man den Naturalismus am besten als These auffasst, nach der alle Tatsachen in einer dieser drei Relationen zu physikalischen Tatsachen stehen. Im letzten Teil zeige ich, dass sich diese Position durch gute Argumente stützen lässt.Naturalists today are confronted with two challenges: First, they have to give “naturalism” a precise meaning, and secondly, they have to provide a plausible justification for their position. In recent years, many opponents of naturalism have tried to show that the naturalist is not able to meet these challenges. In this article, I argue that traditional formulations of naturalism are indeed problematic, but that there is a remedy: the naturalist can characterize natural entities as entities which stand in a special relation to physical facts. There are three candidates for this ‚special relation’: conceptual entailment, identity and realization . I argue that naturalism is best understood as the thesis that all facts stand in one of these three relations to physical facts. In the last part, I show that this thesis can be supported by strong arguments. (shrink)

In this paper, I start from the observation that there are obvious instances of instrumental irrationality, i.e. cases where subjects act knowingly against their strongest preferences. This observation raises an important question: Which facts determine the ‘strength’ of preferences? I consider a standard answer to this question – ‘revealed preference theory’– which turns out to be unsatisfactory. Then I turn to a more promising alternative: the ‘higher order theory’ of preference strength. But this proposal also faces a major problem, the (...) ‘problem of authority’. I argue that this difficulty can be overcome, but only if we are prepared to make some significant normative assumptions – assumptions which imply, among other things, that instrumentalism – the view that instrumental rationality is all there is to rationality – cannot be maintained. (shrink)

The claims about free will that Descartes makes in his writings seem, at first glance, to be inconsistent. In recent years, several authors have argued that we can dissolve the apparent contradiction by taking a closer look at the role that attention plays in Descartes’s theory of the processes of judging and deciding. Prima facie, this exegetical approach seems promising, thus its considerable influence is understandable. Nevertheless, I aim to show that the approach is doomed to failure, since its proponents (...) are committed to ascribe incoherent or otherwise unacceptable doctrines to Descartes, thus violating the principle of charity. This result raises interesting methodological questions, which I discuss in the concluding section of the paper. (shrink)

I wrote earlier on the difference between the Pippinian and Houlgatian interpretations of Hegel’s Logic. In the current piece, I want to elaborate a bit more on Stephen Houlgate’s take on what he calls ‘sheer being’. It will still be extremely exploratory, without delving into the detail of Hegel’s own text, let alone into the secondary literature on the beginning of the Logic (apart from Houlgate, important work in this area is offered by Robert Pippin, Dieter Henrich, Rolf-Peter Horstmann, (...) and more recently Pirmin Stekeler-Weithofer in his massive 3-volume commentary on the Logic). The piece is chiefly critical of a particular, sophisticated and influential reading of the Logic, and doesn’t make propositions on how a positive reading of the Logic might look like. These are just some more critical reflections on what I take to be an ultimately unsuccessful way of approaching Hegel’s Logic, one though that seems very influential and intuitively plausible. I am increasingly suspicious of their attempts to defend ontological readings of Hegel’s Being Logic, such as we can find in the work of Houlgate (but also many others). Below I shall comment in turn on various passages I quote from a recent essay by Houlgate (Houlgate 2018) and elaborate on some of the central arguments. (shrink)

In a most interesting recent essay on Derrida and French philosophy, written by Peter Salmon, a well-known contemporary critique of Enlightenment conceptions of subjectivity was rehearsed, namely as being biased towards a Eurocentric male perspective, which presumes to present a ‘neutral’ view of subjective identity, valid for everyone, always, and universally, without regard for particular personalities, histories, cultural backgrounds, sex or privilege. I criticize this view, in particular with respect to Kant.

This reissue of his collection of early essays, Logico-Linguistic Papers, is published with a brand new introduction by Professor Strawson but, apart from minor ...

Talk at University of Turin, 'Kant, oltre Kant, May 5th 2023. --- -/- It is useful, while keeping in mind a holistic approach, to concentrate on a common theme in Kant’s text, which it will turn out is the quintessential element of his novel ‘way of thinking’, as he himself put it in preface of the second edition of the Critique of Pure Reason. This common theme is the idea of synthesis, which is what holds together, and is the entryway (...) to, all the other familiar aspects of Kant’s thought: his concept of self-consciousness or how mind is involved in cognition, his ideas about the role of the imagination, his theory of knowledge and his metaphysics of experience, and not unimportantly, its relation to what is probably the most Kantian element here: the categories of the understanding as the first principles of knowledge. But the meaning of synthesis and its role in its various facets, though frequently the subject of discussion in papers and monographs alike, is hardly understood in contemporary Kant scholarship. Most readings of the text of the Deduction, the part in which Kant elucidates his concept of synthesis, exhibit a shallow, mechanical understanding of it. -/- A compounding factor is that synthesis can’t really be understood independently of the other aforementioned elements of Kant’s thought. Grasping the meaning of synthesis implies coming to grips with his concept of self-consciousness and the way both self-consciousness and the categories are intricately and intimately involved. Most interpretations consider these aspects too much as if they were indeed separable faculties or entities that serve separable functions, undercutting an important feature of Kant’s metaphysics: the possibility of a priori unified cognition, for which an indivisible self-legislating subject is responsible. Rather, they are expressions of various aspects of a singular function of the mind as the ground of possible unified knowledge. -/- One striking example of such a superficial reading of the text is the way the relation between figurative synthesis and intellectual synthesis—or in the case of the A-Deduction the threefold synthesis—is standardly interpreted, as if the two are independent or quasi-independent functions of different faculties of the mind, the imagination and the understanding. In this paper, I focus on the relation between figurative and intellectual synthesis, while arguing that failing to understand this properly, indeed the relation between the imagination and the understanding, leads to a vicious regress in the explanation of the ground of knowledge, for which a priori synthesis is specifically designed. In other words, failing to see the intimate relation between the imagination and the understanding, the very identity that lies at their root, risks losing sight of the primary aim of Kant’s thought: the possibility of a priori unified knowledge. (shrink)

Plus que de différences qui se juxtaposent, on parle aujourd'hui de processus de différenciation pour traduire le changement fondamental entraîné par la rupture du lien jusqu'ici présumé insécable entre la culture en tant que facteur d'identification collective et son inscription spatiale. A la dichotomie classique entre Nous et les Autres - fondement même du projet anthropologique - se substituent ainsi de nouvelles catégories hybrides : communautés diasporiques, transnationalisme, créolisation, autant d'indicateurs thématiques d'une véritable réorientation de la réflexion sur la culture. (...) C'est dans ce contexte que se pose, de nos jours, le problème d'une " gestion " juridique de la différence culturelle présumée ou revendiquée. Tributaires de l'émergence des peuples autochtones et des minorités " ethniques " ou " culturelles " en tant que nouveaux acteurs sur la scène nationale et internationale, les quatorze contributions à ce recueil d'orientation interdisciplinaire proposent autant de réflexions critiques sur la notion de culture dans son double rapport au Droit (c'est-à-dire au droit positif) et aux droits. Ce qui est en jeu ici, c'est la culture comme variable de l'élaboration de normes juridiques en réponse à des revendications d'ordre identitaire. (shrink)

A complete system of classical Aristotelian logic intended for honors high school and college.