This chapter focuses on one of the common fallacies in Western philosophy called the conjunction fallacy. It discusses a case of Linda who was deeply concerned with issues of discrimination and social justice and also participated in antinuclear demonstrations. The chapter applies the concept the present fallacy to the Linda Problem by using a Venn diagram. When one needs to determine the relative probability of different scenarios, one way to prevent himself/herself from making the conjunction fallacy is to (...) determine whether any of the options is a subset of any other. If so, he/she can conclude that the subset option is not more probable. This rule works because a specific event can never be more likely than a general event that encompasses the specific event. The chapter explains why people are so frequently drawn in by the conjunction fallacy. (shrink)

The current paper highlights a new, interactive Shiny App that can be used to aid in understanding and teaching the important task of conducting a prior sensitivity analysis when implementing Bayesian estimation methods. In this paper, we discuss the importance of examining prior distributions through a sensitivity analysis. We argue that conducting a prior sensitivity analysis is equally important when so-called diffuse priors are implemented as it is with subjective priors. As a proof of concept, we conducted a small simulation (...) study, which illustrates the impact of priors on final model estimates. The findings from the simulation study highlight the importance of conducting a sensitivity analysis of priors. This concept is further extended through an interactive Shiny App that we developed. The Shiny App allows users to explore the impact of various forms of priors using empirical data. We introduce this Shiny App and thoroughly detail an example using a simple multiple regression model that users at all levels can understand. In this paper, we highlight how to determine the different settings for a prior sensitivity analysis, how to visually and statistically compare results obtained in the sensitivity analysis, and how to display findings and write up disparate results obtained across the sensitivity analysis. The goal is that novice users can follow the process outlined here and work within the interactive Shiny App to gain a deeper understanding of the role of prior distributions and the importance of a sensitivity analysis when implementing Bayesian methods. The intended audience is broad and can include those with limited exposure to Bayesian methods or the specific model presented here. (shrink)

according to aristotle's posterior analytics, scientific expertise is composed of two different cognitive dispositions. Some propositions in the domain can be scientifically explained, which means that they are known by "demonstration", a deductive argument in which the premises are explanatory of the conclusion. Thus, the kind of cognition that apprehends those propositions is called "demonstrative knowledge".1 However, not all propositions in a scientific domain are demonstrable. Demonstrations are ultimately based on indemonstrable principles, whose knowledge is called "comprehension".2 If the (...) knowledge of all scientific propositions were... (shrink)

In some sentences, demonstratives can be substituted with definite descriptions without any change in meaning. In light of this, many have maintained that demonstratives are just a type of definite description. However, several theorists have drawn attention to a range of cases where definite descriptions are acceptable, but their demonstrative counterparts are not. Some have tried to account for this data by appealing to presupposition. I argue that such presuppositional approaches are problematic, and present a pragmatic account of the target (...) contrasts. On this approach, demonstratives take two arguments and generally require that the first, covert argument is non-redundant with respect to the second, overt argument. I derive this condition through an economy principle discussed by Schlenker (2005). (shrink)

Standard semantic theories predict that non-deictic readings for complex demonstratives should be much more widely available than they in fact are. If such readings are the result of a lexical ambiguity, as Kaplan (1977) and others suggest, we should expect them to be available wherever a definite description can be used. The same prediction follows from ‘hidden argument’ theories like the ones described by King (2001) and Elbourne (2005). Wolter (2006), however, has shown that complex demonstratives admit non-deictic interpretations only (...) when a precise set of structural constrains are met. In this paper, I argue that Wolter’s results, properly understood, upend the philosophical status quo. They fatally undermine the ambiguity theory and demand a fundamental rethinking of the hidden argument approach. (shrink)

Una Stojnić urges the radical view that the meaning of context-sensitive language is not “partially determined by non-linguistic features of utterance situation”, as traditionally thought, but rather “is determined entirely by grammar—by rules of language that have largely been missed”. The missed rules are ones of discourse coherence. The paper argues against this radical view as it applies to demonstrations, demonstratives, and the indexical ‘I’. Stojnić’s theories of demon-strations and demonstratives are found to be seriously incomplete, failing to meet (...) the demands on any theory of reference. Furthermore, the paper argues that, so far as Stojnić’s theories of these terms go, they are false. This argument appeals to perception-based theories of demonstratives, a part of the tradition that Stojnić strangely overlooks. The paper ends by arguing briefly that though coherence has a place in a theory of understanding, it has no place in a theory of meaning. (shrink)

How can we explain our capacity to think about particulars in our external environment? Many philosophers have answered this question in terms of a sophisticated conception of space and time and the movement of objects therein. A more recent reaction against this view sought to explain this capacity solely in terms of perceptual mechanisms of object individuation. Neither explanation remains fully satisfactory. This book argues for a more desirable middle ground in terms of a pragmatist approach to demonstrative thought, where (...) this capacity is explained through graded practical knowledge of objects. This view allows us to do justice to important insights put forward by both positions criticized in the book, while avoiding their potential shortcomings. It also paves the way to a more pragmatist approach to the theory of mental representation, where the notion of practical knowledge is allowed to play a central role in our cognitive life. Finally, it shows how practical knowledge may be firmly rooted in neurobiological processes and mechanisms that conform to what the empirical sciences tell us about the mind. (shrink)

Since Mates’ seminal Stoic Logic there has been uncertainty and debate about how to treat the term anapodeiktos when used of Stoic syllogisms. This paper argues that the customary translation of anapodeiktos by ‘indemonstrable’ is accurate, and it explains why this is so. At the heart of the explanation is an argument that, contrary to what is commonly assumed, indemonstrability is rooted in the generic account of the Stoic epistemic notion of demonstration. Some minor insights into Stoic logic ensue.

Using a version of situation semantics, this article argues that bare and complex demonstratives are interpreted as individual concepts.

In “Complex Demonstratives: A Quantificational Account” (MIT Press 2001) (henceforth CD), I argued that complex demonstratives are quantifiers. Many philosophers had held that demonstratives, both simple and complex, are referring terms. Since the publication of CD various objections to the account of complex demonstratives I defended in it have been raised. In the present work, I lay out these objections and respond to them.

The aim of this series is to bring together important recent writings in major areas of philosophical inquiry, selected from a variety of sources, mostly periodicals.

In this paper I propose a model of demonstrative thought. I distinguish token-demonstratives, that pick out individuals, from type-demonstratives, that pick out kinds, or properties, and provide a similar treatment for both. I argue that it follows from my model of demonstrative thought, as well as from independent considerations, that demonstration, as a mental act, operates directly on mental representations, not external objects. That is, though the relation between a demonstrative and the object or property demonstrated is semantically direct, the (...) mechanism by which a demonstrative acquires its referent involves mediation by a perceptual representation. Finally, I argue that so-called 'demonstrative concepts'—which I treat as type-demonstratives—cannot perform the various philosophical functions that have been assigned to them. (shrink)

Focusing on the simple demonstrative ‘that’ and demonstrative expressions of the form ‘that F,’ this paper reviews four accounts of what determines the denotations of demonstratives—the description theory, according to which the work is done by a proper definite description associated with the demonstrative; the causal theory, according to which it is done by a non-deviant causal chain connecting the object and the demonstrative; the demonstration theory, according to which it is done by a demonstration accompanying the demonstrative; and the (...) mental reference theory, according to which it is done by the mental act of reference that the demonstrative expresses—and it offers evidence of the superiority of the mental reference theory. (shrink)

Could Christians and Muslims be referring to the same God? For an account of the reference of divine names, I follow Bogardus and Urban (2017) in advocating in favour of using Gareth Evans’s causal theory of reference, on which a name refers to the dominant source of information in the name’s “dossier”. However, I argue further that information about experiences, in which God is simply the object of acquaintance, can dominate the dossier. Thus, this demonstrative use of names offers a (...) promising alternative avenue by which users of the divine names can refer to the same referent despite having different conceptions of God. I also respond to Burling’s (2019) worship-worthiness view. (shrink)

Résumé — Cet article se propose de fournir une contribution au débat interprétatif sur le principe de la limitation de l’acte par la puissance dans la démonstration de l’infinité de Dieu de la Summa theologiae de Thomas d’Aquin à travers une enquête à caractère historique qui expose quelques-unes des étapes capitales de l’histoire de cette preuve. Le désaccord qui divise les interprètes contemporains à propos du rôle joué par le principe susdit hérite, en réalité, d’une opposition séculaire parmi les commentateurs (...) de Thomas qui remonte à la discussion qui suivit l’intervention de Tommaso de Vio et de Francesco Silvestri. D’autre part, l’incontestable présence chez certains commentateurs classiques de Thomas, Jean de Saint-Thomas in primis, d’une position qui sépare la preuve de la Summa du principe de la limitation de l’acte par la puissance réceptive, loin d’exprimer une orthodoxie par rapport à la tradition la plus ancienne, constitue un renversement par rapport à la lecture de Cajetan et de Silvestre de Ferrare, qui s’était affirmée comme l’interprétation canonique du texte de Thomas.— Questo articolo si propone di fornire un contributo al dibattito interpretativo sul principio della limitazione dell’atto attraverso la potenza nella dimostrazione dell’infinità di Dio nella Summa theologiae di Tommaso d’Aquino attraverso un’indagine di carattere storico che espone alcune delle tappe capitali della storia di questa prova. Il disaccordo che divide gli interpreti contemporanei sul ruolo giocato dal principio suddetto eredita, in realtà, un’opposizione secolare fra i commentatori di Tommaso che risale alla discussione che seguî gli interventi di Tommaso de Vio e di Francescio Silvestri. D’altra parte, la presenza, incontestabile, in alcuni commentatori classici di Tommaso, primo fra tutti Giovanni di san Tommaso, di una posizione che separa la prova della Summa dal principio della limitazione dell’atto attraverso la potenza recettiva, lungi dal configurarsi nei termini di una posizione ortodossa rispetto alla tradizione più antica, costituisce un ribaltamento della lettura di Cajetano e di Silvestro da Ferrare, che si era affermata come l’interpretazione canonica del testo di Tommaso. (shrink)

This paper presents a semantic and pragmatic theory of complex demonstratives. According to this theory, the semantic content of a complex demonstrative, in a context, is simply an object, and the semantic content of a sentence that contains a complex demonstrative, in a context, is a singular proposition. This theory is defended from various objections to direct reference theories of complex demonstratives, including King's objection from quantification into complex demonstratives.

This paper presents a dual intention model (DIM) of demonstrations as actions to show the agentive nature of demonstrations. According to the DIM, demonstrations are complex actions that contain as components at least three elements: an abductive intention, a deictic intention, and a basic ostensive act of indication. This paper unpacks these three components and discusses their roles from the viewpoint of the philosophy of action and the philosophy of language. It also shows how the DIM applies (...) in selected practical examples and explains the merits of the model in the context of other views on demonstrations and demonstratives. (shrink)

Most philosophers recognize that applying the standard semantics for complex demonstratives to non-deictic instances results in truth conditions that are anomalous, at best. This fact has generated little concern, however, since most philosophers treat non-deictic demonstratives as marginal cases, and believe that they should be analyzed using a distinct semantic mechanism. In this paper, I argue that non-deictic demonstratives cannot be written off; they are widespread in English and foreign languages, and must be treated using the same semantic machinery that (...) is applied to deictic instances. (shrink)

A number of authors have argued recently that the content of perceptual experience can, and even must, be characterized in conceptual terms. Their claim, more precisely, is that every perceptual experience is such that, of necessity, its content is constituted entirely by concepts possessed by the subject having the experience. This is a surprising result. For it seems reasonable to think that a subject’s experiences could be richer and more fine-grained than his conceptual repertoire; that a subject might be able, (...) for example, to discriminate in experience more shades of colors than he has color concepts. The key move in their argument, therefore, is to articulate the conceptual content of experience using demonstrative, instead of general, concepts. For instance, these authors argue that the content of my perceptual experience of a particular shade of green is properly characterized in terms of the concept expressed by the linguistic utterance “that shade”. Even if I don’t possess a general concept for the shade I’m seeing—a concept of the kind typically expressed using color names like ‘chartreuse’ or ‘lime’—nevertheless, these authors argue, the content of the experience can still be characterized conceptually using a demonstrative concept that I do possess. (shrink)

It is argued in this paper that the valid argument forms coming under the general heading of Demonstrative Induction have played a highly significant role in the history of theoretical physics. This situation was thoroughly appreciated by several earlier philosophers of science and deserves to be more widely known and understood.

A number of authors have argued recently that the content of perceptual experience can, and even must, be characterized in conceptual terms. Their claim, more precisely, is that every perceptual experience is such that, of necessity, its content is constituted entirely by concepts possessed by the subject having the experience. This is a surprising result. For it seems reasonable to think that a subject’s experiences could be richer and more fine-grained than his conceptual repertoire; that a subject might be able, (...) for example, to discriminate in experience more shades of colors than he has color concepts. The key move in their argument, therefore, is to articulate the conceptual content of experience using demonstrative, instead of general, concepts. For instance, these authors argue that the content of my perceptual experience of a particular shade of green is properly characterized in terms of the concept expressed by the linguistic utterance “that shade”. Even if I don’t possess a general concept for the shade I’m seeing—a concept of the kind typically expressed using color names like ‘chartreuse’ or ‘lime’—nevertheless, these authors argue, the content of the experience can still be characterized conceptually using a demonstrative concept that I do possess. (shrink)

David Milner and Melvyn Goodale, and the many psychologists and philosophers who have been influenced by their work, claim that ‘the visual system that gives us our visual experience of the world is not the same system that guides our movements in the world’. The arguments that have been offered for this surprising claim place considerable weight on two sources of evidence — visual form agnosia and the reaching behaviour of normal subjects when picking up objects that induce visual illusions. (...) The present article shows that, if we are careful to consider the possibility that a demonstrative gesture can contribute content to a conscious experience, then neither source of evidence is compelling. (shrink)

In the Prior Analytics Aristotle famously endorses the validity of the mixed modal syllogism Barbara lxl, but in the Posterior Analytics we appear to find Aristotle arguing that since demonstrations are only of what cannot be otherwise, both premises need to be necessary. One would almost think that Aristotle had forgotten what he said about mixed modal syllogisms were it not for the fact that he also appears to refer to it directly in Posterior Analytics i.6. This is puzzling. (...) In this paper I will consider evidence for and against taking both premises to be necessary and conclude that, in accordance with Barbara lxl, the major premise of a demonstration needs to be necessary but the minor premise need not be, and this because the minor term – which denotes the object of inquiry and that to which the demonstrator is trying to demonstrate that something belongs necessarily – may be an accidental term. In particular, I will be offering an original interpretation of Aristotle’s arguments against circular demonstration in Posterior Analytics i.3, which only makes sense if the minor premise is not necessary. (shrink)

: ‘Sortalism about demonstrative reference’ is the view that the capacity to refer to things demonstratively rests on the capacity to classify them according to their kinds. This paper argues for one form of sortalism. Section 1 distinguishes two sortalist views. Section 2 argues that one of them is false. Section 3 argues that the other is true. Section 4 uses the argument from Section 3 to develop a new response to the objection to sortalism from examples where we seem (...) to succeed in referring even though we get sortal classification wrong, or do not attempt to classify at all. (shrink)

What determines the reference of first-person thoughts—thoughts that one would express using the first-person pronoun? I defend a model on which our ways of gaining knowledge of ourselves do, in much the way that our ways of gaining knowledge of objects in the world determine the reference of perceptual demonstrative thoughts. This model—the Demonstrative Model of First-Person Thought—can be motivated by reference to independently plausible general principles about how reference is determined. But it faces a serious objection. There seems to (...) be an explanatory rival to it with a great deal of plausiblility. The rival is The Simple Rule Model, which says that first-person thoughts are governed by the simple rule that any token of one will be about the person whose token it is. I pinpoint a crucial unclarity in The Simple Rule Model, hinging on how we understand the notion of a rule, and argue that no version of the Simple Rule Model is both plausible and a genuine explanatory rival to the Demonstrative Model. I also provide an argument that the Demonstrative Model is extensionally adequate. (shrink)

The Demonstrative Theory holds that quoted matter is logically external to the quoting sentence, that quotation marks are (demonstratively) referential, and that quotation marks are grammatically required for autonomous mentioning. In contrast, the Identity Theory holds that quoted matter is integral to its quoting sentence, that quotation marks serve merely as disambiguating punctuation, and that mentionings need not be quotation-marked. I support the Identity Theory by pointing out fallacies in the arguments for demonstrative theories and by considering empty quotation, ordinary (...) language as found in casual use and in novels and plays, and historical and developmental facts about quotation. (shrink)

Drawing on recent work in developmental and comparative psychology, this paper argues that demonstratives function to coordinate the interlocutors' joint focus of attention, which is one of the most basic functions of human communication. The communicative importance of demonstratives is reflected in a number of properties that together characterize them as a particular word class: In contrast to other closed-class expressions, demonstratives are universal, they are generally so old that their roots cannot be traced back to other linguistic items, they (...) are among the earliest words that children learn, and they are closely tied to a particular gesture. Moreover, demonstratives play an important role in the organization of discourse and the diachronic evolution of grammar, which arguably is also motivated by their communicative function to establish joint attention. (shrink)

In ancient philosophy, Logic was seen as the instrument and method of philosophy. However, sometimes detailed and profound discussions have been made about the demonstrativeness of philosophical sciences. Most philosophers have accepted that the mathematical sciences were especially demonstrative and likewise, most of the natural sciences are demonstrative for them. But can metaphysics be demonstrative or not? This is one of the fundamental issues around which the great debates were made in Islamic philosophy. While these issues are known to specialists (...) in this field, we can hardly find studies and research that deal with this issue to a sufficient degree and precise discussions in our day, I mean the issue of demonstrativeness of art of demonstration, art of dialectic, art of sophistry, art of rhetoric and art of poetry. It is clear that the peripatetic philosophers did not write a separate book or treatise on the issue of the demonstrativeness of the logical arts, but we can claim that they believed that all these arts were demonstrative and that they were extracted/abstracted using the art of demonstration. We can come across important phrases and statements that prove this claim between the lines of the books that these philosophers wrote in the science of logic. And while Aristotle is the founder of the science of logic, then how is it to be understood that there are practical particular examples and some easy rules of these arts? According to their texts, we can say that they believed that the actual performance of these arts by their actors in materials by particular and practical actions differs from extracting their universal rules by abstracting them from their materials through theoretical and analytical research. For example, the poems of the great poets; Homer and al-Mutanabbi, are particular works in the matter of the art of poetry performed by poets. The books written by Aristotle and Ibn Rushd in the art of poetry contain universal rules extracted abstractly from the materials of their particular poems. As for understanding the demonstrativeness of the remaining four arts, it is easier, but how should we understand the demonstrativeness of the art of demonstration itself? It seems that the peripatetic logicians also distinguished between applying demonstrative inferences to significant materials and extracting the universal rules of the art of demonstration from these materials. These five logical arts are not particular and practical things, but they are philosophical, demonstrative, and analytical studies for the peripatetic logicians in Islam. In this paper, we will try to draw attention to the issue of the demonstrativeness of the five arts and to open a new discussion about it based on some important sentences and phrases expressed by al-Fārābī, Ibn Zur‘a, Ibn Sīnā, Ibn Bājja and Ibn Rushd between the lines in their books, which they wrote in the field of logic and within different and multiple contexts. (shrink)

The paper argues that the reference of perceptual demonstratives is fixed in a causal nondescriptive way through the nonconceptual content of perception. That content consists first in spatiotemporal information establishing the existence of a separate persistent object retrieved from a visual scene by the perceptual object segmentation processes that open an object-file for that object. Nonconceptual content also consists in other transducable information, that is, information that is retrieved directly in a bottom-up way from the scene (motion, shape, etc). The (...) nonconceptual content of the mental states induced when one uses a perceptual demonstrative constitutes the mode of presentation of the perceptual demonstrative that individuates but does not identify the object of perceptual awareness and allows reference to it. On that account, perceptual demonstratives put us in a de re relationship with objects in the world through the non-conceptual information retrieved directly from the objects in the environment. (shrink)

Demonstratives play a crucial role in the acquisition and use of language. Bringing together a team of leading scholars this detailed study, a first of its kind, explores meaning and use across fifteen typologically and geographically unrelated languages to find out what cross-linguistic comparisons and generalizations can be made, and how this might challenge current theory in linguistics, psychology, anthropology and philosophy. Using a shared experimental task, rounded out with studies of natural language use, specialists in each of the languages (...) undertook extensive fieldwork for this comparative study of semantics and usage. An introduction summarizes the shared patterns and divergences in meaning and use that emerge. (shrink)

After introducing semantic anti-realism and the paradox of knowability, the paper offers a reconstruction of the anti-realist argument from understanding. The proposed reconstruction validates an unrestricted principle to the effect that truth requires the existence of a certain kind of “demonstration”. The paper shows that that principle fails to imply the problematic instances of the original unrestricted feasible-knowability principle but that the overall view underlying the new principle still has unrestricted epistemic consequences. Appealing precisely to the paradox of knowability, the (...) paper also argues, against the BHK semantics, for the non- constructive character of the demonstrations envisaged by semantic anti-realism, and contends that, in such setting, one of the most natural arguments for a broadly intuitionist revision of classical logic loses all its force.Tras presentar el anti-realismo semántico y la paradoja de la cognoscibilidad, el artículo ofrece una reconstrucción del argumento anti-realista basado en la comprensión. La reconstrucción que se propone valida un principio irrestricto, del que se sigue que la verdad requiere la existencia de un determinado tipo de “demostración”. El artículo muestra que este principio no implica las instancias problemáticas del original principio irrestricto de la cognoscibilidad realizable, y que la concepción general que subyace al nuevo principio todavía tiene consecuencias epistémicas irrestrictas. Apelando precisamente a la paradoja de la cognoscibilidad, el artículo argumenta además, en contra de la semántica BHK, a favor del carácter no constructivo de las demostraciones que contempla el anti-realismo semántico, y defiende que, en ese marco, uno de los argumentos más naturales a favor de una revisión a grandes rasgos intuicionista de la lógica clásica pierde toda su fuerza. (shrink)

In order to capture our intuitions about the logical consistency of sentences and the logical validity of arguments, a semantics for a natural language has to allow for the fact that different occurrences of a single bare demonstrative, such as “this”, may refer to different objects. But it is not obvious how to formulate a semantic theory in order to achieve this result. This paper first criticizes several proposals: that we should formulate our semantics as a semantics for tokens, not (...) expressions, Kaplan’s idea that syntax associates a demonstration with each occurrence of a demonstrative, Braun’s idea that a context may specify shifts in context across the evaluation of the expressions in a sentence; and Predelli’s idea that we should countenance different classes of contexts. Finally, a solution is proposed that allows that a natural language persists across the addition of basic lexical items but defines logical properties in terms of language stages. A surprising result is that we do not need to think of demonstratives as taking different referents in different situations. (shrink)

The paper presents a new theory of perceptual demonstrative thought, the property-dependent theory. It argues that the theory is superior to both the object-dependent theory (Evans, McDowell) and the object-independent theory (Burge).

Demonstratives have been thought to provide counterexamples to theories which analyze the notion of speaker reference in terms of the intentions of the speaker. This paper is a response to three attempts to undermine my efforts to defend such theories against these putative counterexamples. It is argued that the efforts of Howard Wettstein, M. J. More and John L. Biro to show that my own attempt to defuse the putative counterexamples offered by David Kaplan fails, are themselves unsuccessful. The competing (...) view of demonstration which I endorse is clarified further by the discussion. (shrink)

Some demonstrative expressions, those we might term ‘bare demonstratives’, appear without any appended descriptive content (e.g. occurrences of ‘this’ or ‘that’ simpliciter). However, it seems that the majority of demonstrative occurrences do not follow this model. ‘Complex demonstratives’ is the collective term I shall use for phrases formed by adjoining one or more common nouns to a demonstrative expression (e.g. ‘that cat’, ‘this happy man’) and I will call the combination of predicates immediately concatenated with the demonstrative in such phrases (...) the ‘matrix’ of the expression. The question, then, is how we should construe the logical form of such expressions within a semantic theory for our language; and I wish to suggest that some recent answers to this question are, in fact, mistaken. The structure of the paper is as follows: first, I wish to highlight two (often underlying) assumptions about the nature of noun phrases in general, and suggest that, if they are both adopted, they apparently constrain the possible accounts of the logical form of complex demonstratives to just three options. The second and third parts of the paper will be concerned with expanding these options and arguing that none of them are adequate; thus the major part of the paper is concerned with the negative claim that the most obvious moves to make in this area must actually fail on closer inspection. The fourth and final section will then (very briefly) sketch the positive thesis of the paper: that we can deliver a clear and cohesive account of complex demonstratives, armed simply with elements which we will draw from David Kaplan’s theory of demonstratives, but only at the cost of rejecting (or at least refining) one assumption we recognised initially. (shrink)

Donald proposes that early Homo evolved mimesis as a new form of cognition. This article investigates the mimesis hypothesis in relation to the evolution of teaching. The fundamental capacities that distinguish hominin teaching from that of other animals are demonstration and pantomime. A conceptual analysis of the instructional and communicative functions of demonstration and pantomime is presented. Archaeological evidence that demonstration was used for transmitting the Oldowan technology is summarized. It is argued that pantomime develops out of demonstration so that (...) the primary objective of pantomime is that the onlooker learns the motoric patterns shown in the pantomime. The communicative use of pantomime is judged to be secondary. This use of pantomime is also contrasted with other forms of gestures. A key feature of the analysis is that the meaning of a pantomime is characterized by the force patterns of the movements. These force patterns form the core of a model of the cognitive mechanism behind pantomime. Finally, the role of pantomime in the evolution of language is also discussed. (shrink)

Complex demonstrative phrases, in English, are phrases such as ‘that woman in the department’ and ‘that car on the corner’. They are of particular interest to philosophers for two related reasons. The first involves the problem of intentionality. If there are phrases that are candidates for “latching directly onto the world,” they are such phrases, and their “simple” counterparts, as in the occurrences of ‘that’ in ‘that is nice’. As a result, philosophers interested in intentionality, from the sense-data theorists to (...) contemporary philosophers of mind, have devoted considerable attention to the question of how a demonstrative thought links to its object. The second reason involves issues in semantics and the philosophy of language. In the course of investigations into the model theory for modal logic in the 1950s and 1960s, philosophers recognized that the simplest way to treat terms was as modally rigid, namely as designating their actual designations relative to any possible world in which they existed, and nothing else in other worlds. It was soon recognized that this semantic property could be elegantly explained by the assumption that the semantics of singular terms reflects the role of singular terms in linking representations directly to the world. If the semantic contribution of a singular term to a thought is simply the object it denotes, and the thought is the object of modal evaluation, then the modal rigidity of the class of terms falls out as a consequence. Demonstrative phrases, both simple and complex, have always been taken to be among the paradigms for this picture of reference, which has come to be known as “the direct reference” model. (shrink)

This essay proposes a novel semantic account of demonstratives, aimed at clarifying the sense in which demonstratives are semantically dependent on demonstrations. Its first two sections summarize the main views currently on the market. Section 3 argues that they are all vitiated by the same shortcomings, and yield incorrect results of ‘truth in virtue of character’ and entailment. Section 4 proposes a different account of the relationships between demonstratives and demonstrations, grounded on the idea of truth-conditionally irrelevant aspects (...) of the meaning of certain expressions. The resulting view of demonstratives is consonant with the so-called ‘bare boned’ account of their truth-conditional role, but is also in the position to recognize that the dependence of a demonstrative on a demonstration is, in some sense of the term, meaning-governed. The final section of this essay discusses the distinction between ‘vacuous’ and ‘incomplete’ uses of demonstratives, and cases involving multiple occurrences of these expressions. (shrink)