Many experiments suggest that participants are more critical of arguments that challenge their views or that come from untrustworthy sources. However, other results suggest that this might not be true of demonstrative arguments. A series of four experiments tested whether people are influenced by two factors when they evaluate demonstrative arguments: how confident they are in the answer being challenged by the argument, and how much they trust the source of the argument. Participants were not (...) affected by their confidence in the answer challenged by the argument. By contrast, they were sometimes affected by their trust in the argument’s source. Analyses of reaction times and transfer problems suggest that source trustworthiness did not directly affect argument evaluation, but affected instead the number of times the participants considered the arguments. Our results thus suggest that people can evaluate demonstrative arguments objectively. In conclusion, we defend the hypothesis that people might also be able to evaluate non-demonstrative arguments objectively. These results support the predictions of the argumentative theory of reasoning. (shrink)

The two extant versions of Gorgias’ Peri tou mē ontos have been preserved by an anonymous author and by Sextus Empiricus. Both versions have been differently interpreted by scholars who examine either the doctrine or the rhetorical-communicational dimen­sion. When comparing the PTMO with the rest of Gorgias’ works, the present paper aims to demonstrate that S.E. offers a more precise account of Gorgias’ modus argumentandi. Thus, S.E. shows the following, typical features of Gorgias’ demonstra­tive reasoning: 1) application of demonstrandum and (...) quod erat demon­strandum, 2) continuous employment of reductio ad absurdum and 3) a refined formulation of the principle of non-contradiction. The MXG, on the other hand, is accurate in the discussion of particular arguments, but presents an interpreter who is more interested in questioning Gorgias rather than doing justice to his thought. Hence, this article concludes that it was S.E., who had the text or at least a relatively accurate summa­ry of the PTMO. (shrink)

Aristotle divided arguments that persuade into the rhetorical (which happen to persuade), the dialectical (which are strong so ought to persuade to some degree) and the demonstrative (which must persuade if rightly understood). Dialectical arguments were long neglected, partly because Aristotle did not write a book about them. But in the sixteenth and seventeenth century late scholastic authors such as Medina, Cano and Soto developed a sound theory of probable arguments, those that have logical and not (...) merely psychological force but fall short of demonstration. Informed by late medieval treatments of the law of evidence and problems in moral theology and aleatory contracts, they considered the reasons that could render legal, moral, theological, commercial and historical arguments strong though not demonstrative. At the same time, demonstrative arguments became better understood as Galileo and other figures of the Scientific Revolution used mathematical proof in arguments in physics. Galileo moved both dialectical and demonstrative arguments into mathematical territory. (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)

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 (in: Almog, Perry, Wettstein (eds) Themes from Kaplan, Oxford University Press, Oxford, 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 (Complex Demonstratives: a Quantificational (...) Account, MIT Press, Cambridge, 2001) and Elbourne (Situations and Individuals, MIT Press, Cambridge, 2005). Wolter (That’s That; the Semantics and Pragmatics of Demonstrative Noun Phrases. Ph.D. thesis, University of California at Santa Cruz, 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)

The aim of this paper is to examine the medieval posterity of the Aristotelian and Pyrrhonian treatments of the infinite regress argument. We show that there are some possible Pyrrhonian elements in Autrecourt's epistemology when he argues that the truth of our principles is merely hypothetical. By contrast, Buridan's criticisms of Autrecourt rely heavily on Aristotelian material. Both exemplify a use of scepticism.

According to the scrutability argument against physicalism, an a priori gap between the physical and conscious experience entails a lack of necessitation and the falsity of physicalism. This paper investigates the crucial premise of the scrutability argument: the inference from an a priori gap to a lack of necessitation. This premise gets its support from modal rationalism, according to which there are important, potentially constitutive, connections between a priori justification and metaphysical modality. I argue against the strong form of modal (...) rationalism that underwrites the scrutability argument and suggest a more moderate rationalist view. I offer a novel demonstrative reply to the scrutability argument, according to which demonstratives play a vital role in the generation of meaning for our representations of conscious experience. This connection between conscious experience and demonstratives, rather than a metaphysical gap generated by the truth of dualism, is the source of the epistemic gap between consciousness and the physical. (shrink)

Media argumentation is a powerful force in our lives. From political speeches to television commercials to war propaganda, it can effectively mobilize political action, influence the public, and market products. This book presents a new and systematic way of thinking about the influence of mass media in our lives, showing the intersection of media sources with argumentation theory, informal logic, computational theory, and theories of persuasion. Using a variety of case studies that represent arguments that typically occur in the (...) mass media, Douglas Walton demonstrates how tools recently developed in argumentation theory can be usefully applied to the identification, analysis, and evaluation of media arguments. (shrink)

Media argumentation is a powerful force in our lives. From political speeches to television commercials to war propaganda, it can effectively mobilize political action, influence the public, and market products. This book presents a new and systematic way of thinking about the influence of mass media in our lives, showing the intersection of media sources with argumentation theory, informal logic, computational theory, and theories of persuasion. Using a variety of case studies that represent arguments that typically occur in the (...) mass media, Douglas Walton demonstrates how tools recently developed in argumentation theory can be usefully applied to the identification, analysis, and evaluation of media arguments. He draws upon the most recent developments in artificial intelligence, including dialogical theories of argument, which he developed, as well as speech act theory. Each chapter presents solutions to problems central to understanding, analyzing, and criticizing media argumentation. (shrink)

And in what sense can one speak of the hermeneutics of original argument? In The Hermeneutics of Original Argument, P. Christopher Smith explores these questions in building upon Heidegger's hermeneutical thought.

It is well known that Maimonides rejects the Kalam argument for the existence of God because it assumes the temporal creation of the world, a premise for which he says there is no “cogent demonstration (burhan qat'i) except among those who do not know the difference between demonstration, dialectics, and sophistic argument.”Moses Maimonides, The Guide of the Perplexed, trans. Shlomo Pines (Chicago: University of Chicago Press, 1963), I:71:180. All references are to this translation; parenthetic in-text references are to part, chapter, (...) and page. By contrast, he claims to establish belief in the existence of God “through a demonstrative method as to which there is no disagreement in any respect” (I:71:182). Taken at his word, Maimonides’ proofs for the existence of the deity, like Aquinas’s five ways, have traditionally been read as models of medieval natural theology: of the power of human reason to independently establish revealed truth. In recent years, however, the same demonstrations have assumed a second kind of significance. For scholars, like myself, who argue that Maimonides holds severe views about the limitations of human knowledge of divine science and metaphysics, these demonstrations are the strongest conceivable counterevidence.The locus classicus for this view is Shlomo Pines, “The Limitations of Human Knowledge According to Al-Farabi, Ibn Bajja, and Maimonides,” in Studies in Medieval Jewish History and Literature, ed. I Twersky, 3 vols. (Cambridge: Harvard University Press, 1979), I:82–109. See also his “Les Limites de la Métaphysique selon Al-Farabi, ibn Bajja et Maimonide; Sources et Antitheses de ces Doctrines chez Alexandre d’Aphrodise et Chez Themistius,” Miscellanea Mediaevalia 13 (1981): 211–25; “Dieu et L’Etre Selon Maimonide: Exégese d’Exode 3,14 et doctrine connexe,” in Celui qui est: Interprétations juives et chrétiennes d’Exode 3, 14, ed. A. de Libera et E. Zum Brunn (Paris: Les Editions du Cerf [Collection “Patrimoines”], 1986), 15–24; and “The Relation between Maimonides’ Halakhic and non-Halakhic Works,” in Maimonides and Philosophy, ed., S. Pines and Y. Yovel (Dordrecht: Martinus Nijhoff, 1987). Pines concludes, on the basis of the limitations of the intellect with respect to knowledge of metaphysics, that Maimonides, like Kant, gives priority to the practical over the theoretical. For arguments drawing different ‘skeptical’ conclusions, see my “Maimonides in the Skeptical Tradition,” ms.; “Maimonides on the Growth of Knowledge and the Limitations of the Intellect,” to appear in Tony Levy, ed., Maimonide: Traditions philosophiques et scientifiques médievales arabe, hébraique, latine; “Logical Syntax as a Key to a Secret of the Guide of the Perplexed,” (in Heb.), Iyyun 38 (1989): 137–66; “Maimonides on Language and the Science of Language,” in Maimonides and the Sciences, ed., H. Levine and R. Cohen (Dordrecht: Kluwer, 2000), pp. 173–226; and The Matter and Form of Maimonides’ Guide (forthcoming). If Maimonides really held that humans cannot apprehend metaphysical truths about the deity, how could he have demonstrated (or even thought he could demonstrate) the existence of God? If he does demonstrate it, then humans evidently do have knowledge of metaphysics. As one distinguished scholar has recently protested, it is nothing less than “perverse” to interpret Maimonides as “meaning that the existence of God is unknowable when he in fact prides himself on having demonstrated the existence of God in four different ways.”Herbert A. Davidson, “Maimonides on Metaphysical Knowledge,” Maimonidean Studies 3 (1992–1993): 49–103, 86. See also Alfred L. Ivry, “The Logical and Scientific Premises of Maimonides’ Thought,” in Perspectives on Jewish Thought and Mysticism, ed. Alfred L. Ivry, Elliot R. Wolfson, and Allan Arkush (Amsterdam: Harwood Publishers, 1998), pp. 63–97, 70. (shrink)

This paper argues, based on Lewis’ claim that communication is a coordination game (Lewis in Minnesota studies in the philosophy of science, University of Minnesota Press, Minneapolis, pp 3–35, 1975), that we can account for the communicative function of demonstratives without assuming that they semantically refer. The appeal of such a game theoretical version of the case for non-referentialism is that the communicative role of demonstratives can be accounted for without entering the cul de sac of trying to construct conventions (...) of ever-increasing complexity. Instead communication via demonstratives is explained with reference to the general, non-domain specific ability of human beings to solve games of coordination. Furthermore, there is empirical support for such a view. Judgments concerning demonstrative reference have been shown to be sensitive to judgments concerning common ground (Clark et al. in J Verb Learn Verb Behav 22:245–258, 1983), which is exactly what the non-referentialist account would predict. The game theoretical account also allows for an intuitively plausible, non-referentialist treatment of Speaks’ ‘trumping argument’ (Speaks in Philos Stud 174:709–734, 2017), as well as the Carnap/Agnew puzzle (Kaplan in Syntax Semant 9:221–43, 1970). (shrink)

S'adressant à Matern Reuss, Kant présentait ainsi son ouvrage : "Je vous envoie un petit traité au contenu de théologie philosophique, et non proprement biblique, dans lequel j'ai pris soin de ne heurter aucune Église, puisqu'il n'est pas question de la foi que peut avoir un homme en général, mais seulement de celle de celui qui se fonde uniquement sur la raison...".

Taking as his point of departure Heidegger’s description of hermeneutics as the “process of making things clear in talking about them,” Smith sets out to “lay bare” or “lay out” the nature of argument by presenting a tightly interwoven series of readings of the great philosophical works that have shaped our understanding of demonstration, dialectic, and rhetoric. His interpretations of the relevant works of Plato and Aristotle focus on explicit and implicit references to argument as it actually occurs in conversations (...) and discussions rather than as it is filtered through abstractive theories. In the process the author discloses heretofore unnoticed or deemphasized themes in these ancient texts. (shrink)

The traditional problem of evil is set forth, by no means for the first time, in Part X of Hume's Dialogues Concerning Natural Religion in these familiar words: ‘Is [God] willing to prevent evil, but not able? then he is impotent. Is he able, but not willing? then he is malevolent. Is he both able and willing? whence then is evil?’ This formulation of the problem of evil obviously suggests an argument to the effect that the existence of evil in (...) the world demonstrates that God does not exist. The purpose of this paper is to examine this argument, with a view to showing that while it is not a conclusive argument, it is much stronger than some apologists for traditional theism allow. (shrink)

The label idios apodeixis/logos «particular demonstration or argument» of Gorgias is known to us only from the third section of the little work attributed to Aristotle under the title De Melisso, Xenophane, Gorgia. Its authenticity seems to be unjustly questioned. We try to show that from the Aristotelian perspective we can properly understand the context of Gorgias’ own argument from his lost treatise On Not-Being or On Nature. Parmenides – using implicitly the polysemy of the verb ἔστιν/εἶναι – presented a (...) certain ontological argument «being is, because being is being». Gorgias, however, makes a parody of this by offering a meontological argument: «not-being is because not-being is not-being». Consequently Gorgias then attempts to demonstrate, by means of refutation, that «it is not either to be or not be», i.e. «nothing is». We propose, thus, a reconstruction of Gorgias’ account of meonological and nihilistic argumentation. In this context we find in Plato’s Sophist and in Aristotle’s writings certain allusions to Gorgias’ idios apodeixis, which have not been sufficiently recognized and properly interpreted. (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)

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)

This paper critically evaluates the regress argument for infinitism. The dialectic is essentially this. Peter Klein argues that only an infinitist can, without being dogmatic, enhance the credibility of a questioned non-evident proposition. In response, I demonstrate that a foundationalist can do this equally well. Furthermore, I explain how foundationalism can provide for infinite chains of justification. I conclude that the regress argument for infinitism should not convince us.

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.

Argumentation is pervasive in everyday life. Understanding what makes a strong argument is therefore of both theoretical and practical interest. One factor that seems intuitively important to the strength of an argument is the reliability of the source providing it. Whilst traditional approaches to argument evaluation are silent on this issue, the Bayesian approach to argumentation (Hahn & Oaksford, 2007) is able to capture important aspects of source reliability. In particular, the Bayesian approach predicts that argument content and source reliability (...) should interact to determine argument strength. In this paper, we outline the approach and then demonstrate the importance of source reliability in two empirical studies. These experiments show the multiplicative relationship between the content and the source of the argument predicted by the Bayesian framework. (shrink)

Written by experts in the field, this volume presents a comprehensive investigation into the relationship between argumentation theory and the philosophy of mathematical practice. Argumentation theory studies reasoning and argument, and especially those aspects not addressed, or not addressed well, by formal deduction. The philosophy of mathematical practice diverges from mainstream philosophy of mathematics in the emphasis it places on what the majority of working mathematicians actually do, rather than on mathematical foundations. -/- The book begins by first challenging the (...) assumption that there is no role for informal logic in mathematics. Next, it details the usefulness of argumentation theory in the understanding of mathematical practice, offering an impressively diverse set of examples, covering the history of mathematics, mathematics education and, perhaps surprisingly, formal proof verification. From there, the book demonstrates that mathematics also offers a valuable testbed for argumentation theory. Coverage concludes by defending attention to mathematical argumentation as the basis for new perspectives on the philosophy of mathematics. ​. (shrink)

The argument from convention contends that the regular use of definite descriptions as referential devices strongly implies that a referential semantic convention underlies such usage. On the presumption that definite descriptions also participate in a quantificational semantic convention, the argument from convention has served as an argument for the thesis that the English definite article is ambiguous. Here, I revisit this relatively new argument. First, I address two recurring criticisms of the argument from convention: its alleged tendency to overgenerate and (...) its apparent evidential inadequacy. These criticisms are found wanting. Second, following Zacharska, I argue that while the argument from convention does alter the landscape of logical possibilities insofar as it provides good grounds for treating Donnellan’s referential–attributive distinction as having truth-conditional consequences, the argument from convention nonetheless fails to demonstrate that ‘the’ requires two lexical entries. (shrink)

Argumentation mining is an application of natural language processing (NLP) that emerged a few years ago and has recently enjoyed considerable popularity, as demonstrated by a series of international workshops and by a rising number of publications at the major conferences and journals of the field. Its goals are to identify argumentation in text or dialogue; to construct representations of the constellation of claims, supporting and attacking moves (in different levels of detail); and to characterize the patterns of reasoning that (...) appear to license the argumentation. Furthermore, recent work also addresses the difficult tasks of evaluating the persuasiveness and quality of arguments. Some of the linguistic genres that are being studied include legal text, student essays, political discourse and debate, newspaper editorials, scientific writing, and others. The book starts with a discussion of the linguistic perspective, characteristics of argumentative language, and their relationship to certain other notions such as subjectivity. Besides the connection to linguistics, argumentation has for a long time been a topic in Artificial Intelligence, where the focus is on devising adequate representations and reasoning formalisms that capture the properties of argumentative exchange. It is generally very difficult to connect the two realms of reasoning and text analysis, but we are convinced that it should be attempted in the long term, and therefore we also touch upon some fundamentals of reasoning approaches. Then the book turns to its focus, the computational side of mining argumentation in text. We first introduce a number of annotated corpora that have been used in the research. From the NLP perspective, argumentation mining shares subtasks with research fields such as subjectivity and sentiment analysis, semantic relation extraction, and discourse parsing. Therefore, many technical approaches are being borrowed from those (and other) fields. We break argumentation mining into a series of subtasks, starting with the preparatory steps of classifying text as argumentative (or not) and segmenting it into elementary units. Then, central steps are the automatic identification of claims, and finding statements that support or oppose the claim. For certain applications, it is also of interest to compute a full structure of an argumentative constellation of statements. Next, we discuss a few steps that try to 'dig deeper': to infer the underlying reasoning pattern for a textual argument, to reconstruct unstated premises (so-called 'enthymemes'), and to evaluate the quality of the argumentation. We also take a brief look at 'the other side' of mining, i.e., the generation or synthesis of argumentative text. The book finishes with a summary of the argumentation mining tasks, a sketch of potential applications, and a—necessarily subjective—outlook for the field. Table of Contents: Preface / Acknowledgments / Introduction / Argumentative Language / Modeling Arguments / Corpus Annotation / Finding Claims / Finding Supporting and Objecting Statements / Deriving the Structure of Argumentation / Assessing Argumentation / Generating Argumentative Text / Summary and Perspectives / Bibliography / Authors' Biographies / Index. (shrink)

Certain passages in Kaplan’s ‘Demonstratives’ are often taken to show that non-vacuous sentential operators associated with a certain parameter of sentential truth require a corresponding relativism concerning assertoric contents: namely, their truth values also must vary with that parameter. Thus, for example, the non-vacuity of a temporal sentential operator ‘always’ would require some of its operands to have contents that have different truth values at different times. While making no claims about Kaplan’s intentions, we provide several reconstructions of how such (...) an argument might go, focusing on the case of time and temporal operators as an illustration. What we regard as the most plausible reconstruction of the argument establishes a conclusion similar enough to that attributed to Kaplan. However, the argument overgenerates, leading to absurd consequences. We conclude that we must distinguish assertoric contents from compositional semantic values, and argue that once they are distinguished, the argument fails to establish any substantial conclusions. We also briefly discuss a related argument commonly attributed to Lewis, and a recent variant due to Weber. (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.

In this paper, I present a new semantics for demonstratives. Now some may think that David Kaplan (1989a,b) has already given a more than satisfactory semantics for demonstratives, and that there is no need for a new one. But I argue below that Kaplan's theory fails to describe the linguistic meanings of 'that' and other true demonstratives. My argument for this conclusion has nothing to do with cognitive value, belief sentences, or other such contentious matters in semantics and the philosophy (...) of mind. Rather, it appeals to the obvious fact that there can be true utterances of certain sentences containing several occurrences of the same demonstrative (for instance, 'That is taller than that'). My argument can be answered by making a fairly modest revision in Kaplan's theory. But I believe that the resulting revised version of Kaplan's theory ignores or distorts various important semantic features of 'that'. Thus I ultimately argue in favor of a more substantial departure from Kaplan's theory. Perhaps the most remarkable feature of the theory I favor is that it ascribes three distinct sorts of meanings to demonstratives. (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)

Samuel Clarke was by far the most gifted and influential Newtonian philosopher of his generation, and A Demonstration of the Being and Attributes of God, which constituted the 1704 Boyle Lectures, was one of the most important works of the first half of the eighteenth century, generating a great deal of controversy about the relation between space and God, the nature of divine necessary existence, the adequacy of the Cosmological Argument, agent causation, and the immateriality of the soul. Together with (...) the other texts presented in this edition, it also provides the best introduction to Clarke's philosophical views, which, in addition to their intrinsic interest, are historically important for the light they shed both on the philosophical positions within the Newtonian circle and on the exchange between Clarke and Leibniz, the most famous philosophical controversy of the eighteenth century. (shrink)

Arguments for and against the existence of demonstrative concepts of shades and shapes turn on the assumption that demonstrative concepts must be recognitional capacities. The standard argument for this assumption is based on the widely held view that concepts are those constituents of propositional attitudes that account for an attitude's inferential potential. Only if demonstrative concepts of shades are recognitional capacities, the standard argument goes, can they account for the inferential potential of demonstrative judgements about (...) shades. Shades are conceived as colour universals. Shade a is different from shade b iff it is possible to distinguish a from b visually. In this paper I will argue that the standard argument is based on a mistaken view of inference. We can correctly draw inferences from a demonstrative judgement about something x , even if we are not able to recognise or re-identify the previously demonstrated x during our reasoning. We are prima facie entitled to rely on our preservative memory as retaining our initial demonstrative apprehension of x . The fact that preservative memory entitles us to assume sameness of referent over time is linguistically manifest in the use of anaphoric pronouns: if we can no longer recognise and demonstrate our original demonstratum, we can use anaphoric expressions to pick it up, thereby ensuring sameness of reference. ('That is a nice bird. Now it has vanished. So there is a nice bird that has just vanished.') Since preservation of the initial episode of apprehending x grounds our reasoning from demonstrative judgements, there is no longer a reason to require demonstrative concepts to be recognitional capacities. The standard argument does not get off the ground. 1. (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)

Sometimes form-meaning mappings in language are not arbitrary, but iconic: they depict what they represent. Incorporating iconic elements of language into a compositional semantics faces a number of challenges in formal frameworks as evidenced by the lengthy literature in linguistics and philosophy on quotation/direct speech, which iconically portrays the words of another in the form that they were used. This paper compares the well-studied type of iconicity found with verbs of quotation with another form of iconicity common in sign languages: (...) classifier predicates. I argue that these two types of verbal iconicity can, and should, incorporate their iconic elements in the same way using event modification via the notion of a context dependent demonstration. This unified formal account of quotation and classifier predicates predicts that a language might use the same strategy for conveying both, and I argue that this is the case with role shift in American Sign Language. Role shift is used to report others’ language and thoughts as well as their actions, and recently has been argued to provide evidence in favor of Kaplanian “monstrous” indexical expressions. By reimagining role shift as involving either quotation for language demonstrations or “body classifier” predicates for action demonstrations, the proposed account eliminates one major argument for these monsters coming from sign languages. Throughout this paper, sign languages provide a fruitful perspective for studying quotation and other forms of iconicity in natural language due to their lack of a commonly used writing system which is otherwise often mistaken as primary data instead of speech, the rich existing literature on iconicity within sign language linguistics, and the ability of role shift to overtly mark the scope of a language report. In this view, written language is merely a special case of a more general phenomenon of sign and speech demonstration, which accounts more accurately for natural language data by permitting more strict or loose verbatim interpretations of demonstrations through the context dependent pragmatics. (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)

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 Argument Web is maturing as both a platform built upon a synthesis of many contemporary theories of argumentation in philosophy and also as an ecosystem in which various applications and application components are contributed by different research groups around the world. It already hosts the largest publicly accessible corpora of argumentation and has the largest number of interoperable and cross compatible tools for the analysis, navigation and evaluation of arguments across a broad range of domains, languages and activity (...) types. Such interoperability is key in allowing innovative combinations of tool and data reuse that can further catalyse the development of the field of computational argumentation. The aim of this paper is to summarise the key foundations, the recent advances and the goals of the Argument Web, with a particular focus on demonstrating the relevance to, and roots in, philosophical argumentation theory. (shrink)

_Reading Aristotle: Argument and Exposition_ demonstrates that Aristotle’s treatises rely crucially on expository principles—questions of proper sequence, pedagogical method, and distinctions between different sciences.

This paper is to argue that conductive arguments could be understood from a rhetorical perspective. It contends that conductive arguments can be regarded as a particular mode of strategic maneuvering, rather than a new type of argument. Moreover, it demonstrates that the use of conductive arguments can be adequately analyzed and evaluated by adopting the theoretical tools developed in the extended Pragma-Dialectics.

result from combining the determiners `this' or `that' with syntactically simple or complex common noun phrases such as `woman' or `woman who is taking her skis off'. Thus, `this woman', and `that woman who is taking her skis off' are complex demonstratives. There are also plural complex demonstratives such as `these skis' and `those snowboarders smoking by the gondola'. My book Complex Demonstratives: A Quantificational Account argues against what I call the direct reference account of complex demonstratives (henceforth DRCD) and (...) defends a quantificational account of complex demonstratives. In two recent papers, Nathan Salmon has criticized one of the book's arguments against DRCD. In this essay I show that Salmon's criticism fails. I also show that the version of DRCD that Salmon ends up endorsing is false. (shrink)