Ontology of Concepts

Many philosophers have recently become interested in conceptual engineering, or the activity of producing better conceptual schemes in human populations. But few, if any, are asking the question: what would it mean for actual human agents to possess the social authority to modify a conceptual scheme in this way? This paper argues for a deontological approach to conceptual engineering, wherein we have to secure social authority qua engineers before attempting to modify social concepts. I show that the dominant, consequentialist conception (...) of engineering violates basic rights that concept-users have, particularly over their own identity-constituting concepts. Using examples from the philosophy of race and sexuality, I show that conceptual engineers cannot authoritatively modify social concepts if they employ consequentialist reasoning about those concepts. (shrink)

When asked which of our concepts are normative concepts, metaethicists would be quick to list such concepts as GOOD, OUGHT, and REASON. When asked why such concepts belong on the list, metaethicists would be much slower to respond. Matti Eklund is a notable exception. In his recent book, Choosing Normative Concepts, Eklund argues by elimination for “the Normative Role view” that normative concepts are normative in virtue of having a “normative role” or being “used normatively”. One view that Eklund aims (...) to eliminate is “the Metaphysical view” that normative concepts are normative in virtue of referring to normative properties. In addition to arguing that Eklund’s objection looks doubtful by its own lights, we argue that there are several plausible versions of the Metaphysical view that Eklund doesn’t eliminate, defending various claims about normative concepts and their relationships to deliberation, competence, reference, and possession along the way. (shrink)

The search for the “furniture of the mind” has acquired added impetus with the rise of new technologies to study the brain and identify its main structures and processes. Philosophers and scientists are increasingly concerned to understand the ways in which psychological functions relate to brain structures. Meanwhile, the taxonomic practices of cognitive scientists are coming under increased scrutiny, as researchers ask which of them identify the real kinds of cognition and which are mere vestiges of folk psychology. Muhammad Ali (...) Khalidi presents a naturalistic account of “real kinds” to validate some central taxonomic categories in the cognitive domain, including concepts, episodic memory, innateness, domain specificity, and cognitive bias. He argues that cognitive kinds are often individuated relationally, with reference to the environment and etiology of the thinking subject, whereas neural kinds tend to be individuated intrinsically, resulting in crosscutting relationships among cognitive and neural categories. (shrink)

Ontologies are some of the most central constructs in today's large plethora of knowledge technologies, namely in the context of the semantic web. As their coinage indicates, they are direct heirs to the ontological investigations in the long Western philosophical tradition, but it is not easy to make bridges between them. Contemporary ontological commitments often take causality as a central aspect for the ur-segregation of entities, especially in scientific upper ontologies; theories of causality and philosophical ontological investigations often go hand-in-hand, (...) and were essentially inseparable in medieval thought. This constitutes the foundation for a bridge, and this article analyzes the causality-based ontology of the late medieval philosopher Dietrich of Freiberg from the viewpoint of today's upper-ontology engineering. In this bridging attempt, it offers a translation into English of the first part of Dietrich's De origine (abbreviated title) that is a compromise between traditional scholarly translations of medieval Latin philosophical texts and contemporary ontology. (shrink)

In this presentation, I first outline three different notions of concepts: one derives from Leibniz, while the other two derive from Frege. The Leibnizian notion is the subject of his “calculus of concepts” (which is really an algebra). One notion of concept from Frege is what we would call a “property”, so that when Frege says “x falls under the concept F”, we would say “x instantiates F” or “x exemplifies F”. The other notion of concept from Frege is that (...) of the notion of sense, which played various roles within Frege's theory. This notion of concept can be generalized and, as such, accounts for our intuitive talk of “x's concept of …”, where the ellipsis can be filled in with a name for individual, a property, or a relation, etc. After outlining these three notions, I then discuss how (axiomatic) object theory offers a distinct, precise regimentation of each of the three notions. (shrink)

What is the primacy of logic? Concepts, judgments, or inferences? Whereas representationalists traditionally argue for a primacy of the conceptual, rationalists, referring to the context principle and the use theory of meaning, consider judgments and inferences to be primary. This dispute also seems to be applicable to logic diagrams: Whereas “Euler-type diagrams” are actually only for judgments and inferences, “concept diagrams” represent ontologies by using concepts. With reference to Schopenhauer, the paper develops a position called “rational representationalism.” According to this (...) point of view, the question of primacy is decided by analyzing the functions of the logic principles: For the explanation of logic and language, concepts are primary, but for understanding it is judgments. The mediation between intuitive representation and logical rationality is ensured by concept diagrams. (shrink)

Dennett elabora una concepción del “yo” entendido como un centro de gravedad narrativo. Uno de los obstáculos principales para valorar esta propuesta radica en que resulta dificultoso entender cuál es la naturaleza del concepto dennettiano de “yo”: concretamente, cuáles son los compromisos ontológicos y epistemológicos que cabe atribuir al fenómeno en cuestión. En este artículo defendemos que el mejor modo de realizar una reconstrucción interpretativa de su noción de “yo” es apelando a la distinción elaborada por Reichenbach entre tres clases (...) de entidades, Concreta,a e Illata, y entendiendo a los centros de gravedad narrativos como un caso de Abstracta reichenbachiano. Sostenemos que resulta pertinente e iluminador entender los centros de gravedad narrativos como Abstracta en el sentido de Reichenbach, apoyándonos en que: i) aunque no la aplica directamente al problema de la naturaleza del “yo”, Dennett sí emplea la distinción de Reichenbach en otras partes de su obra; ii) Dennett traza explícitamente una analogía del “yo” con los centros de gravedad que son, justamente, uno de sus ejemplos de Abstracta; iii) este modo de entender al “yo” permite dar sentido y entender mejor ciertos aspectos de la teoría narrativista dennettiana. Además de permitirnos clarificar las metáforas empleadas por Dennett en la elaboración de su teoría narrativa, dicha elucidación conceptual permite comprender mejor la distinción entre las tres clases de psicología intencional trazada por Dennett y es útil para sugerir a cuál de estos tres tipos pertenece el concepto de “yo”. Dennett's theory of personal identity argues that the “self” is no more than a center of narrative gravity. One of the main hurdles to assessing this proposal lies in the fact that it is difficult to understand what the nature of Dennett's concept of "self" is; specifically, what are the ontological and epistemological commitments that can be attributed to the phenomenon in question. In this article, we claim that the best way to make an interpretative reconstruction of his notion of "self" is appealing to the distinction elaborated by Reichenbach between three classes of entities, Concreta, Abstracta, and Illata, and understanding the narrative centers of gravity as a case of Reichenbachian Abstracta. We defend that understanding the narrative centers of gravity as Abstracta in the sense of Reichenbach is pertinent and illuminating given that: i) although he does not apply it directly to the problem of the nature of the "self", Dennett does use Reichenbach's distinction in other parts of his work; ii) Dennett explicitly draws an analogy of the "self" with the centers of gravity that are, precisely, one of his examples of Abstracta; iii) this way of understanding the "self" allows us to give sense and better understand certain aspects of Dennett’s narrative theory. Besides allowing us to clarify the metaphors used by Dennett in the elaboration of his narrative theory, such conceptual elucidation allows us to better understand the distinction between the three classes of intentional psychology drawn by Dennett (1987) and is useful in suggesting to which of these three types the concept of "self" belongs. (shrink)

There are striking similarities in the ways philosophers use to speak about concepts and properties. For example, it is commonly said that concepts and properties are ‘predicated’ of things – which, in turn, are said to ‘exemplify’ those concepts or properties. Concepts as well as properties are assumed to have ‘instances’ and ‘extensions’ and to be the semantical values of adjectives like ‘red,’ ‘round,’ and so on. Even metaphysically, concepts and properties seem to have much in common. Thus, both have (...) been characterized as universals capable of having multiple instances. In this essay, I would like to explore the conspicuous interrelations between concepts and properties from the viewpoint of a pragmatist approach which aims to explain phenomena of mind and meaning in terms of the actions and practices of (social) beings. To this end, I shall discuss the probably most influential development of this program, namely Wittgenstein’s theory of meaning as use, and probe the extent to which this theory is capable of illuminating the ontological nexus between concepts and properties. (shrink)

A concept is traditionally defined via the necessary and sufficient conditions that clearly determine its extension. By contrast, cognitive views of concepts intend to account for empirical data that show that categorisation under a concept presents typicality effects and a certain degree of indeterminacy. We propose a formal language to compactly represent concepts by leveraging on weighted logical formulas. In this way, we can model the possible synergies among the qualities that are relevant for categorising an object under a concept. (...) We show that our proposal can account for a number of views of concepts such as the prototype theory and the exemplar theory. Moreover, we show how the proposed model can overcome some limitations of cognitive views. (shrink)

Recently, Casasanto and Lupyan (2015) have asserted that there are no context-independent concepts: all concepts are constructed ad hoc when they are instantiated. My aim is to show that the ad hoc cognition framework can be characterized by a similarity-based theory of concepts, and that two different notions of concept should be distinguished —which may be identified with two distinct stages of their life cycle (storage and instantiation). This approach brings together virtues from opposing views: (a) invariantist: stored concepts are (...) stable enough to collect new information; (b) contextualist: instantiated concepts are context-dependent, what explains our adaptive ability to changing environments. (shrink)

(Recipient of the 2020 Everett Mendelsohn Prize.) This article revisits the development of the protoplasm concept as it originally arose from critiques of the cell theory, and examines how the term “protoplasm” transformed from a botanical term of art in the 1840s to the so-called “living substance” and “the physical basis of life” two decades later. I show that there were two major shifts in biological materialism that needed to occur before protoplasm theory could be elevated to have equal status (...) with cell theory in the nineteenth century. First, I argue that biologists had to accept that life could inhere in matter alone, regardless of form. Second, I argue that in the 1840s, ideas of what formless, biological matter was capable of dramatically changed: going from a “coagulation paradigm” that had existed since Theophrastus, to a more robust conception of matter that was itself capable of movement and self-maintenance. In addition to revisiting Schleiden and Schwann’s original writings on cell theory, this article looks especially closely at Hugo von Mohl’s definition of the protoplasm concept in 1846, how it differed from his primordial utricle theory of cell structure two years earlier. This article draws on Lakoff and Johnson’s theory of “ontological metaphors” to show that the cell, primordial utricle, and protoplasm can be understood as material container, object, and substance, and that these overlapping distinctions help explain the chaotic and confusing early history of cell theory. (shrink)

One of the greatest challenges facing materialist theories of the human mind is the problem of intentionality. As many non-materialists of various stripes have pointed out, it is very difficult to say, if the human mind is a purely material thing, how this material thing can be about or represent another thing wholly distinct from itself. However, for their part, these same non-materialists have relied heavily or exclusively on this intuition that one material thing cannot be about another. In this (...) paper, that hole in the intentionality objection to materialist theories of mind is filled by way of providing the germ of a new theory of the metaphysics of intentionality. On this view, intentionality just is partial identity. Partial identity is a concept introduced by David Armstrong and used by Donald Baxter to give a metaphysics of instantiation. The aboutness exhibited by our mental activity is simply a partial identity relation between the mind and the object of thought. This thesis, I contend, is a faithful interpretation of Brentano’s “intentional inexistence,” which the objects of thought have in the mind and which he held to be characteristic exclusively of mental phenomena. Some interesting and fortuitous consequences, including an elucidation of precisely why one material thing can never be about something distinct from itself, are then examined, and finally a defense against some objections is given. (shrink)

It has become commonplace in the theory of concepts to distinguish between questions about the structure and questions about the ontology of concepts. Structural questions concern the way concepts are composed of, or otherwise related to, other concepts (or non-conceptual constituents), while ontological questions concern the metaphysical nature of concepts: how concepts exist (if they exist); what kind of entities they are. A tacit assumption in discussions about the structure and ontology of concepts seems to be that structural and ontological (...) questions can be treated more or less independently of each other. Correspondingly, it might be assumed that one can rather arbitrarily combine structural analyses of concepts with any hypothesis about their ontological make-up. In this paper, we would like to question this assumption with regard to a particular recent development in the structural analysis of concepts, the so-called frame theory. As a matter of fact, most frame theorists adopt a subjectivist theory of concepts. Yet, subjectivism attracts philosophical criticisms, which originate mainly in the writings of the later Ludwig Wittgenstein. While Wittgenstein appreciated the cognitive dimension of concepts, he came to reject the subjectivist’s causal analysis of mental explanation and their ensuing reification of concepts as causally operative mental particulars. Instead, Wittgenstein suggested that concepts are socially imparted norms of classification and inference – i. e., abstractions from collective word-usages and other practices associated with categorizing and higher-order thinking, which may serve as instructions for individual agents on how to discriminate and interact with things of different kinds. Applying the Wittgensteinian critique of subjectivism to the frame analysis, the we not only find that the frame approach quite nicely dovetails with what the pragmatist has to say about concepts and categorization, insofar as frames seem particularly well-suited to depict the defeasible and context-dependent default character of our usual criteria for semantical understanding. Indeed, pragmatism, with its emphasis on the holistic, indeterminate and normative nature of our conceptual activities, seems able to explain why concepts are frames. This shows that there exist at least some interconnections between structural and ontological analyses, which must not be ignored, especially in interdisciplinary investigations on concepts. Even if frame theory is not strictly incompatible with a subjectivist ontology, it does license an abductive inference to a pragmatist ontology of concepts, as frames precisely formalize the insights into our actual conceptual practice that led Wittgenstein to develop his pragmatist view. (shrink)

Two general principles have played a crucial role in the recent debate on concepts. On the one hand, we want to allow different subjects to have the same concepts, thus accounting for concept publicity: concepts are ‘the sort of thing that people can, and do, share’. On the other hand, a subject who finds herself in a so-called ‘Frege case’ appears to have different concepts for the same object: for instance, Lois Lane has two distinct concepts SUPERMAN and CLARK KENT (...) which refer to the same person. Several theories have tried to meet both of these constraints at the same time. But should we really try to satisfy both principles? This paper will argue that the traditional project of fulfilling these two constraints has been a misguided one. Through a variation on classic identity mistake cases, I will show that our two desiderata are inconsistent: it would thus be impossible to incorporate both of them in our best theory of concepts. (shrink)

Neural plasticity has been invoked as a powerful argument against nativism. However, there is a line of argument, which is well exemplified by Pinker and more recently by Laurence and Margolis The conceptual mind: new directions in the study of concepts, MIT, Cambridge, 2015) with respect to concept nativism, according to which even extreme cases of plasticity show important innate constraints, so that one should rather speak of “constrained plasticity”. According to this view, cortical areas are not really equipotential, they (...) perform instead different kinds of computation, follow essentially different learning rules, or have a fixed internal structure acting as a filter for specific categories of inputs. We intend to analyze this argument, in the light of a review of current neuroscientific literature on plasticity. Our conclusion is that Laurence and Margolis are right in their appeal to innate constraints on connectivity—a thesis that is nowadays welcome to both nativists and non-nativists —but there is little support for their claim of further innate differentiation between and within cortical areas. As we will show, there is instead strong evidence that the cortex is characterized by the indefinite repetition of substantially identical computational units, giving rise in any of its portions to Hebbian, input-dependent plasticity. Although this is entirely compatible with the existence of innate constraints on the brain’s connectivity, the cerebral cortex architecture based on a multiplicity of maps correlating with one another has important computational consequences, a point that has been underestimated by traditional connectionist approaches. (shrink)

In this chapter, I clarify the notions of mental content and of concept. I present competing views on these notions and indicate my own position. I introduce content in terms of correctness conditions and distinguish several kinds of propositions, as well as non-propositional scenario content, with which perceptual content might be identified. I relate this discussion to a wide-spread commitment in philosophy of perception to respect the subject’s perceptual perspective in ascriptions of perceptual content. Then I compare views of concepts (...) as Fregean senses, as mental representations, and as cognitive abilities and investigate how they relate to the central idea that concepts are possessed by subjects. I suggest that our talk of concept possession and exercise is anchored in subjects’ abilities for re-identification and for general thought and in their inferential abilities. I clarify how possession and exercise of these three conceptual abilities relate. (shrink)

Modes of presentation are often posited to accommodate Frege’s puzzle. Philosophers differ, however, in whether they follow Frege in identifying modes of presentation with Fregean senses, or instead take them to be formally individuated symbols of “Mentalese”. Building on Fodor, Margolis and Laurence defend the latter view by arguing that the mind-independence of Fregean senses renders them ontologically suspect in a way that Mentalese symbols are not. This paper shows how Fregeans can withstand this objection. Along the way, a clearer (...) understanding emerges of what senses must be to serve as an ontologically benign alternative to symbols of Mentalese. (shrink)

Recently in the philosophy of psychology it has been suggested that several putative phenomena such as emotions, memory, or concepts are not genuine natural kinds and should therefore be eliminated from the vocabulary of scientific psychology. In this paper I examine the perhaps most well known case of scientific eliminativism, Edouard Machery’s concept eliminativism. I argue that the split-lump-eliminate scheme of con- ceptual change underlying Machery’s eliminativist proposal assumes a simplistic view of the functioning of scientific concepts. Conceiving of scientific (...) concepts as natural kind terms is an important reason for the impasse between Machery and anti-eliminativists, as both sides allude to properties of natural kinds in their contradicting arguments. As a solution I propose that, in order to develop a more satisfactory theory of conceptual change in science, one needs to distinguish between three different types of scientific concepts, hitherto conflated under the loaded notion of natural kind. (shrink)

I examine two arguments for the existence of demonstrative concepts—one due to Chuard (2006) and another due to Brewer (1999). I point out some important difficulties in each. I hope to show that much more work must be done to legitimize positing demonstrative concepts.

Th is article explores a cognitivist approach to concepts. Such an approach steers a middle course between the Scylla of subjectivism and the Charybdis of objectivism. While concepts are not mental particulars, they have an ineliminable cognitive dimension. Th e article explores several versions of cognitivism, focusing in particular on Künne’s Neo-Fregean proposal that concepts are modes of presentation. It also tackles a challenge facing all cognitivist accounts, namely the ‘proposition problem’: how can the cognitive dimension of concepts be reconciled (...) with the idea that concepts are components of propositions. My moral is that this challenge can be met only by combining Neo-Fregean ideas with certain Wittgensteinian insights. (shrink)

This entry provides an overview of theories of concepts that is organized around five philosophical issues: (1) the ontology of concepts, (2) the structure of concepts, (3) empiricism and nativism about concepts, (4) concepts and natural language, and (5) concepts and conceptual analysis.

In our critical review of Doing without Concepts, we argue that although the heterogeneity hypothesis (according to which exemplars, prototypes and theories are natural kinds that should replace ‘concept’) may end fruitless debates in the psychology of concepts, Edouard Machery did not anticipate one consequence of his suggestion: Definitions now acquire a new status as another one of the bodies of information replacing ‘concept’. In order to support our hypothesis, we invoke dual-process models to suggest that prototypes, exemplars and theories (...) are ‘Type 1’ concepts (automatic, implicit) and definitions ‘Type 2’ concepts (controlled, explicit). In the context of this argument, we suggest that one must better distinguish between Type 1 theories (e.g., Bayesian causal nets) and Type 2 theories (e.g., scientific) that explicitly control definitions. (shrink)

This article investigates whether the concept of a concept can be given a fairly uniform explanation through a 'cognitivist' account, one that accepts that concepts exist independently of individual subjects, yet nonetheless invokes mental achievements and capacities. I consider various variants of such an account, which identify a concept, respectively, with a certain kind of abilitiy, rule and way of thinking. All of them are confronted with what I call the 'proposition problem', namely that unlike these explananda concepts are standardly (...) regarded as components of propositions. The paper ends by suggesting that this problem can be resolved by recognizing the different ways in which concepts can be involved in judgements or propositions, and by undermining the building-block model of concepts as abstract parts of abstract wholes. (shrink)

Concepts are best understood as a particular kind of human ability: a person who has mastered the use of a word for F in some language possesses the concept of F. Abilities are individuated by their possessors and their exercises, though they are not to be identified with either. Typically abilities are associated with vehicles, that is to say underlying actualities which account for their exercises. The mind is the human ability to form concepts, and its principal vehicle is the (...) brain; but the mind should not be identified with the brain any more than it should be identified with the behaviour in which its concepts are expressed. (shrink)

The years of study on Husserl’s theory of intentionality have led to a number of non-equivalent interpretations. The present work attempts to investigate the most prominent of these by presenting both their advantages and difficulties. However, its key point is specifically the analysis of Husserl’s theory. This is made in several stages that are concerned with the relation between noesis and noema: whether it is one-to-one or many-to-one, the kind of transcendency and dependency between them, and whether noema supervenes on (...) noesis. Moreover, Husserl’s theory is also examined in—usually ignored—instances of contradiction, nonsense and intentional conflict. The outcome is a fresh reading in which noema occurs as the possibly thinkable content capable of constituting multi-objective references and composed of pure X explained in terms of syntactic matter and form. (shrink)

This commentary focuses on Machery's eliminativist claim, that ought to be eliminated from the theoretical vocabulary of psychology because it fails to denote a natural kind. I argue for the more traditional view that concepts are a functional kind, which provides the simplest account of the empirical evidence discussed by Machery.

Much recent work on concepts has been inspired by and developed within the bounds of the representational theory of the mind often taken for granted by philosophers of mind, cognitive scientists, and psychologists alike. The contributions to this volume take a more encompassing perspective on the issue of concepts. Rather than modelling details of our representational architecture in line with the dominant paradigm, they explore three traditional issues concerning concepts. Is mastery of a language necessary for thought? Do concepts reduce (...) to abilities? Is the analysis of concepts a viable means to ascertain truths from the proverbial armchair? An introductory essay provides a rough geography of key ideas and issues shaping the overall debate on concepts within contemporary philosophy. (shrink)

The debate about concepts has always been shaped by a contrast between subjectivism, which treats them as phenomena in the mind or head of individuals, and objectivism, which insists that they exist independently of individual minds. The most prominent contemporary version of subjectivism is Fodor's RTM. The Fregean charge against subjectivism is that it cannot do justice to the fact that different individuals can share the same concepts. Proponents of RTM have accepted shareability as a ‘non-negotiable constraint’. At the same (...) time they insist that by distinguishing between sign-types and – tokens the Fregean objection cannot just be circumvented but revealed to be fallacious. My paper rehabilitates the Fregean argument against subjectivism. The RTM response rests either on an equivocation of ‘concept’—between types which satisfy the non-negotiable constraint and tokens which are mental particulars in line with RTM doctrine—or on the untenable idea that one and the same entity can be both a shareable type and hence abstract and a concrete particular in the head. Furthermore, subjectivism cannot be rescued by adopting unorthodox metaphysical theories about the type/token and universal/particular contrasts. The final section argues that concepts are not representations or signs, but something represented by signs. Even if RTM is right to explain conceptual thinking by reference to the occurrence of mental representations, concepts themselves cannot be identical with such representations. (shrink)

The debate about concepts has always been shaped by a contrast between subjectivism, which treats them as phenomena in the mind or head of individuals, and objectivism, which insists that they exist independently of individual minds. The most prominent contemporary version of subjectivism is Fodor's RTM. The Fregean charge against subjectivism is that it cannot do justice to the fact that different individuals can share the same concepts. Proponents of RTM have accepted shareability as a 'non-negotiable constraint'. At the same (...) time they insist that by distinguishing between sign-types and -- tokens the Fregean objection cannot just be circumvented but revealed to be fallacious. My paper rehabilitates the Fregean argument against subjectivism. The RTM response rests either on an equivocation of 'concept'--between types which satisfy the non-negotiable constraint and tokens which are mental particulars in line with RTM doctrine--or on the untenable idea that one and the same entity can be both a shareable type and hence abstract and a concrete particular in the head. Furthermore, subjectivism cannot be rescued by adopting unorthodox metaphysical theories about the type/token and universal/particular contrasts. The final section argues that concepts are not representations or signs, but something represented by signs. Even if RTM is right to explain conceptual thinking by reference to the occurrence of mental representations, concepts themselves cannot be identical with such representations. (shrink)

What is a concept? Philosophers have given many different answers to this question, reflecting a wide variety of approaches to the study of mind and language. Nonetheless, at the most general level, there are two dominant frameworks in contemporary philosophy. One proposes that concepts are mental representations, while the other proposes that they are abstract objects. This paper looks at the differences between these two approaches, the prospects for combining them, and the issues that are involved in the dispute. We (...) argue that powerful motivations have been offered in support of both frameworks. This suggests the possibility of combining the two. Unlike Frege, we hold that the resulting position is perfectly coherent and well worth considering. Nonetheless, we argue that it should be rejected along with the view that concepts are abstract objects. (shrink)

How are we to understand the notion of concept, the very concept of concept itself? One natural way, it seems to me, is to take Fregean sense as a model, and imposing similar constraints on a theory of concepts. This approach has the advantage, among others, of allowing for a distinction to be made between publicly shared, objective concepts, on the one hand, and private, subjective mental representations on the other - a distinction which, I believe, is desirable for various (...) reasons. One problem with Frege. (shrink)

I argue that thoughts and concepts are mental representations rather than abstracta. I propose that the most important difference between the two views is that the mentalist believes that there are concept and thought tokens as well as types; this reveals that the dispute is not terminological but ontological. I proceed to offer an argument for mentalism. The key step is to establish that concepts and thoughts have lexical as well as semantic properties. I then show that this entails that (...) concepts and thoughts are susceptible to the type/token distinction. I finish by considering some objections to the argument. (shrink)

of my axiomatic theory of abstract objects.¹ The theory asserts the ex- istence not only of ordinary properties, relations, and propositions, but also of abstract individuals and abstract properties and relations. The.

In this paper, the author develops a theory of concepts and shows that it captures many of the ideas about concepts that Leibniz expressed in his work. Concepts are first analyzed in terms of a precise background theory of abstract objects, and once concept summation and concept containment are defined, the axioms and theorems of Leibniz's calculus of concepts (in his logical papers) are derived. This analysis of concepts is then seamlessly connected with Leibniz's modal metaphysics of complete individual concepts. (...) The fundamental theorem of Leibniz's modal metaphysics of concepts is proved, namely, whenever an object x has F contingently, then (i) the individual concept of x contains the concept F and (ii) there is a (counterpart) complete individual concept y which doesn't contain the concept F and which `appears' at some other possible world. Finally, the author shows how the concept containment theory of truth can be made precise and made consistent with a modern conception of truth. (shrink)

Three different notions of concepts are outlined: one derives from Leibniz, while the other two derive from Frege. The Leibnizian notion is the subject of his "calculus of concepts" (which is really an algebra). One notion of concept from Frege is what we would call a "property", so that when Frege says "x falls under the concept F", we would say "x instantiates F" or "x exemplifies F". The other notion of concept from Frege is that of the notion of (...) sense, which played various roles within Frege's theory. This notion of concept can be generalized and, as such, accounts for our intuitive talk of "x's concept of ...", where the ellipsis can be filled in with a name for individual, a property, or a relation, etc. After outlining these three notions, I then discuss how (axiomatic) object theory offers a distinct, precise regimentation of each of the three notions. (shrink)

Given the fundamental role that concepts play in theories of cognition, philosophers and cognitive scientists have a common interest in concepts. Nonetheless, there is a great deal of controversy regarding what kinds of things concepts are, how they are structured, and how they are acquired. This chapter offers a detailed high-level overview and critical evaluation of the main theories of concepts and their motivations. Taking into account the various challenges that each theory faces, the chapter also presents a novel approach (...) to concepts that is organized around two ideas. The first is a pluralistic view of differing types of conceptual structure. The second is a model that treats concepts as atomic representations that are linked to various types of conceptual structures. (shrink)

La publicación de Historia y hermenéutica representa, temática y estructuralmente, una nueva invitación al diálogo. Con ocasión del octogésimo cumpleaños de Hans-George Gadamer, el metodólogo de la historia Reinhart Koselleck ofreció la conferencia 'Histórica y hermenéutica' el horizonte de la pregunta que encierra la conferencia fue abierto por Gadamer con su tentativa de respuesta 'Histórica y lenguaje'. Con todo, la descripción de un libro que invita a una lectura estructuralmente dialogal es incompleta si no se muestra, al menos sintetizadamente, el (...) tema del diálogo... En su conferencia Koselleck aborda cuál es la relación espistemológica entre Histórica —la doctrina de las condiciones de posibilidad de las historias efectuales asimiladas comprensivamente— y la hermenéutica. Koselleck sostiene que el estatus epistemológico de la Histórica la hace irreductible a un caso de hermenéutica; a fin de fundamentar esta tesis, Koselleck ofrece una definición de una teoría de la historia o Histórica y describe aquellas condiciones de posibilidad de las historias, considerando que, en conjunto, tales consideraciones revelarían una prelingüística categoría trascendental de posibles historias. (shrink)

The paper aims to disarm arguments, prevalent in diverse philosophical contexts, that deny the legitimacy of attributions of propositional attitudes on the grounds that the putative subject lacks one or more of the requite concepts. Its strategy is to offer and defend an extremely minimal account on concept possession. The agenda of the paper broadens into a defence of the thesis that concepts are a linguistic epiphenomenon: talk about them emerges as the result of certain contingently available and pleonastic ways (...) of talking about propositional attitudes. (shrink)

Philosophers and historians of science have made the claim that successive scientific theories are incommensurable, that is, that many or all of their concepts fail to coincide. This claim has been echoed by cognitive psychologists who have applied it to the successive conceptual schemes of young children, or of children and adults. This paper examines the psychological evidence for the claim and proposes ways of reinterpreting it which do not involve imputing incommensurability. An alternative approach to understanding conceptual change is (...) suggested, according to which novel concepts are introduced against a background of shared concepts, rather than as part of incommensurable conceptual schemes. (shrink)

This dissertation proposes an original theory of concepts. Under this theory, concepts are not understood as independent entities, but as the activity of judging that something is the same as or different from something else. This judgment may be intentional or nonintentional. I consider theories of concepts that have been proposed throughout the history of philosophy, and I reject them. I further claim that nonconceptual awareness is impossible.

Two main theories of concepts have emerged in the recent psychological literature: the Prototype Theory (which considers concepts to be self-contained lists of features) and the Theory Theory (which conceives of them as being embedded within larger theoretical networks). Experiments supporting the first theory usually differ substantially from those supporting the second, which suggests that these the· ories may be operating at different levels of explanation and dealing with different entities. A convergence is proposed between the Theory Theory and the (...) intentional stance in the philosophy of language and mind. From this stance, concepts should not be thought of as concrete physical entities. (shrink)

A review essay on Peacocke's book A Study of Concepts. Raises questions about the role of the concept of finding an inference primitively compelling and questions of detail about the basic framework, its application to the systematicity of thought, the response to potential objections in the chapters on the metaphysics of concepts and naturalism, and the treatment of the concept of belief.