Vagueness: an expression is vague if and only if it is possible that it give rise to a “borderline case.” A borderline case is a situation in which the application of a particular expression to a (name of) a particular object does not generate an expression with a definite TRUTH-VALUE. That is, the piece of language in question neither applies to the object nor fails to apply. Although such a formulation leaves it open what the pieces of language might be (...) (whole sentences, individual words, NAMES or SINGULAR TERMS, PREDICATES or GENERAL TERMS), most discussions have focussed on vague general terms and have considered other types of terms to be non-vague. (Exceptions to this have called attention to the possibility of vague objects, thereby making the designation relation for singular terms be vague). The formulation also leaves open the possible causes for the expression not to have a definite truth value. If this indeterminacy is due to there being insufficient information available to determine applicability or non-applicability of the term (that is, we’re convinced the term either does or doesn’t apply, but we just don’t have enough information to determine which), then this is sometimes called “epistemic vagueness.” It is somewhat misleading to call this vagueness, for unlike true vagueness, this epistemic vagueness disappears if more information is brought into the situation. (‘There are 1.89∞106 stars in the sky’ epistemically vague but is not vague in the generally accepted sense of the term). ‘Vagueness’ may also be used to characterize non-linguistic items such as CONCEPTS, MEMORIES, and OBJECTS ... as well as such semi-linguistic items as STATEMENTS and PROPOSITIONS. Many of the issues involved in discussing the topic of vagueness impinge upon other philosophical topics, such as the existence of TRUTH-VALUE GAPS (declarative sentences which are neither TRUE nor FALSE) and the plausibility of MANY-VALUED LOGIC.. (shrink)

1: Linguistic and Epistemological Background 1 . 1 : Generic Reference vs. Generic Predication 1 . 2 : Why are there any Generic Sentences at all? 1 . 3 : Generics and Exceptions, Two Bad Attitudes 1 . 4 : Exceptions and Generics, Some Other Attitudes 1 . 5 : Generics and Intensionality 1 . 6 : Goals of an Analysis of Generic Sentences 1 . 7 : A Little Notation 1 . 8 : Generics vs. Explicit Statements of Regularities..

The central concern of Knowledge in a Social World is to restore the notion of Truth to the rightful place of glory that it had before the onslaught of those pragmatic, cultural-studying, social constructing, critical legalistic and feministic postmodernists (PoMo’s, for short). As G sees it, these PoMo’s have never put forward any “real” arguments for their veriphobia; and, well, how could they, since their position is committed to the “denial of Truth” and hence committed to denying that there is (...) any such thing as a valid or a sound argument. Instead, according to G, they have artfully inculcated various types of considerations so that a defender of Truth now must swim against the entire flow of academe to even stand a chance of making his or her voice heard. G finds six overlapping currents in this wash of anti-veritas ideas, listing them in his §1.3 and devoting a further section to each of them in turn (§1.4–§1.9). These currents spring up in various later parts of the book for further discussion, but even in these places G refers the reader back to the material in Chapter 1 as refuting them. (Insofar as a current that is not based on any consideration of Truth, validity, or soundness is susceptible of refutation.) I think it is fair to say that G does not really intend that his comments about the anti-veritas ideas will be taken as definitive by the veriphobes, but rather that he believes the strength of his positive account in the rest of the book (which accords Truth a central role) will sway all neutral readers into a belief of the usefulness of Truth in an account of social knowledge. Still, I think many readers…even veriphiles…will find the considerations that G brings against the six currents to be disappointingly short. I want to consider some of the currents in the stream of PoMo ideas. As I said, G’s six currents overlap at various points, and each of the currents has sub-flows. This means that we might put.... (shrink)

In an attempt to address the theoretical gap between linguistics and philosophy, a group of semanticists, calling itself the Generic Group, has worked to develop a common view of genericity. Their research has resulted in this book, which consists of a substantive introduction and eleven original articles on important aspects of the interpretation of generic expressions. The introduction provides a clear overview of the issues and synthesizes the major analytical approaches to them. Taken together, the papers that follow reflect the (...) current state of the art in the semantics of generics, and afford insight into various generic phenomena. (shrink)

In William Ockham on Metaphysics, Jenny E. Pelletier gives an account of Ockham's concept of metaphysics as the science of being and God as it emerges sporadically throughout his philosophical and theological work.

Natural deduction is the type of logic most familiar to current philosophers, and indeed is all that many modern philosophers know about logic. Yet natural deduction is a fairly recent innovation in logic, dating from Gentzen and Jaśkowski in 1934. This article traces the development of natural deduction from the view that these founders embraced to the widespread acceptance of the method in the 1960s. I focus especially on the different choices made by writers of elementary textbooks—the standard conduits of (...) the method to a generation of philosophers—with an eye to determining what the ‘essential characteristics’ of natural deduction are. (shrink)

Some utterances of sentences such as ‘Every student failed the midterm exam’ and ‘There is no beer’ are widely held to be true in a conversation despite the facts that not every student in the world failed the midterm exam and that there is, in fact, some beer somewhere. For instance, the speaker might be talking about some particular course, or about his refrigerator. Stanley and Szabó (in Mind and Language v. 15, 2000) consider many different approaches to how contextual (...) information might give meaning to these ‘restricted quantifier domains’, and find all of them but one wanting. The present paper argues that their considerations against one of these other theories, considerations that turn on notions of compositionality, are incorrect. (shrink)

Strawson described ‘descriptive metaphysics’, Bach described ‘natural language metaphysics’, Sapir and Whorf describe, well, Sapir-Whorfianism. And there are other views concerning the relation between correct semantic analysis of linguistic phenomena and the “reality” that is supposed to be thereby described. I think some considerations from the analyses of the mass-count distinction can shed some light on that very dark topic.

In one of his Quodlibeta, William of Ockham entertains two concepts of God, one theological and the other philosophical. He argues that conclusions involving a theological concept of God are believable and can only be established in theology where recourse to faith is permissible. By contrast, conclusions involving a philosophical concept of God are knowable and can be proved in philosophy and theology. The source of these two concepts lies in the Sentences commentary of his confrère Walter Chatton,1 who explores (...) how different descriptions of God affect the provability of theological conclusions about God. Chatton himself is reacting to Ockham’s earlier Sentences commentary where Ockham suggests that a... (shrink)

Many different kinds of items have been called vague, and so-called for a variety of different reasons. Traditional wisdom distinguishes three views of why one might apply the epitaph "vague" to an item; these views are distinguished by what they claim the vagueness is due to. One type of vagueness, The Good, locates vagueness in language, or in some representational system -- for example, it might say that certain predicates have a range of applicability. On one side of the range (...) are those cases to which the predicate clearly applies and on the other side of the range are those cases where the negation of the predicate clearly applies. But there is no sharp cutoff place along the range where the one range turns into the other. Most examples of The Good are those terms which describe some continuum -- such as bald describes a continuum of the ratio of hairs per cm2 on the head. But not all work this way. Alston (1968) points to terms like religion invoking a number of criteria the joint applicability of which ensures that the activity in question is a religion and the failure of all to apply ensures that it is not a religion. But when only some middling number of the criteria are fulfilled, the term religion neither applies nor fails to apply. Some accounts of "family resemblance" and "open texture" might also fit this picture. Such a view is often called a "representational account of vagueness". Another conception of vagueness, The Bad, locates vagueness as a property of discourses, of memories, and of certain philosophers and their papers, etc. This sort of vagueness occurs when the information available does not allow one to tell, for example, that a certain sentence is true, but also does not allow one to determine that it is false. It occurs when the information available does not allow one to claim that a predicate applies to a name, but also does not allow one to claim that the negation of the predicate applies to that name.. (shrink)

This is a position paper concerning the role of empirical studies of human default reasoning in the formalization of AI theories of default reasoning. We note that AI motivates its theoretical enterprise by reference to human skill at default reasoning, but that the actual research does not make any use of this sort of information and instead relies on intuitions of individual investigators. We discuss two reasons theorists might not consider human performance relevant to formalizing default reasoning: (a) that intuitions (...) are sufficient to describe a model, and (b) that human performance in this arena is irrelevant to a competence model of the phenomenon. We provide arguments against both these reasons. We then bring forward three further considerations against the use of intuitions in this arena: (a) it leads to an unawareness of predicate ambiguity, (b) it presumes an understanding of ordinary language statements of typicality, and (c) it is similar to discredited views in other fields. We advocate empirical investigation of the range of human phenomena that intuitively embody default reasoning. Gathering such information would provide data with which to generate formal default theories and against which to test the claims of proposed theories. Our position is that such data are the very phenomena that default theories are supposed to explain. (shrink)

According to many realist philosophers of fiction, one needs to posit an ontology of existing fictional characters in order to give a correct account of discourse about fiction. The realists' claim is opposed by pretense theorists for whom discourse about fiction involves, as discourse in fiction, pretense. On that basis, pretense theorists claim that one does not need to embrace an ontology of fictional characters to give an account of discourse about fiction. The ontolog-ical dispute between realists and pretense theorists (...) is mainly a dispute in the realm of the phi-losophy of language concerning the status relative to pretense of discourse about fiction. Realists are persuaded that there is a sharp line between discourse in fiction and discourse about fiction while pretense theorists deny there exists such a line. I suggest that realists may have a wrong picture of discourse in fiction since, in many cases, discourse in fiction already contains many occurrences of discourse about fiction. Consequently, discourse about fiction, instead of ending fiction, should be regarded, following pretense theorists, as adding extra lay-ers of fiction. (shrink)

Although advances in the underlying theory of a subdiscipline of AI can result in impressive increases in the performance of systems that employ such an underlying theory, this sometimes seems to be almost "by accident." The reason for this impression is that the impressive new advance in performance sometimes seems to be a feature merely of the specific example tests that are being demonstrated. And this impression is further strengthened when one notes that, in general, a localized theoretical advance is (...) only rarely suflicient to increase the overall performance of any complex system. As a result of all these considerations, researchers who make theoretical advances are left desiring some method that would demonstrate that the advance really does have general, overall positive consequences for their system's performance. (shrink)

Advances in the underlying theory of a subdiscipline of AI can result in an apparently impressive improvement in the performance of a system that incorporates the advance. This impression typically comes from observing improved performance of the new system on some test problems. However, the improvement in performance may be for only the problems used in the testing, and performance on other problems may be degraded, possibly resulting overall in an degradation of the system’s performance. This comes about typically when (...) the incorporation of the new feature increases the resources required overall, but the feature has bene- fits on only some problems (e.g., those used to test the new new system). In general, a localized theoretical advance is only rarely sufficient to increase the overall performance of any complex system. Therefore, researchers who make theoretical advances, also need some way to demonstrate that an advance really does have general, overall positive consequences for system.. (shrink)

The general aim of this volume is to investigate the nature of the relation between pictorial experience and aesthetic appreciation. In particular, it is concerned with the character and intimacy of this relationship: is there a mere causal connection between pictorial experience and aesthetic appreciation, or are the two relata constitutively associated with one another? The essays in the book's first section investigate important conceptual issues related to the pictorial experience of paintings. In Section II, the essays discuss the notion (...) of styles, techniques, agency, and facture, and also take into account the experience of photographic and cinematic pictures. The Pleasure of Pictures goes substantially beyond current debates in the philosophy of depiction to launch a new area of reflection in philosophical aesthetics. (shrink)

After the publication in 1809 of On the Essence of Human Freedom, Schelling worked for several years on the near unrealizable project of the Ages of the World. In both these works, the creation of a narrative accounts for the anxiety associated with the birth of the Absolute out of itself. After a discussion of the eternal life of the Absolute, characterized by its ongoing anxious longing toward being, I investigate the narrative dimension of these works and consider the role (...) played by anxiety and anthropomorphism. Finally, I try to determine the mythical status of Schelling’s narrative. (shrink)

(although the FOF, unlike the CNF, is still a theorem). The correct version of Problem 62 is (following the format of (Pelletier, 1986)): Natural FOF Negated Conclusion CNF (Ax)r(Pet~(Px m Pf(x))) m Pf(f(x))] Pet Px+ P f(f(x)) + -Pa..

In this short but dense monograph, Roques sets out to fill a significant lacuna in the literature on William of Ockham's logic, epistemology, and metaphysics: his theory of real definitions. Remarkably, the subject has received little attention, given that nominal definitions, specifically in connection to complex connotative concepts in mental language and their role in Ockham's ontological reductionism, have been a central focus since the early 1980s. One reason for this oversight may be the historical association between real definitions and (...) the realist view that essences are universal entities. Ockham, a resemblance nominalist, holds that all essences are individual entities; this does not, as Roques's present... (shrink)

This edited volume presents new lines of research dealing with the language of thought and its philosophical implications in the time of Ockham. It features more than 20 essays that also serve as a tribute to the ground-breaking work of a leading expert in late medieval philosophy: Claude Panaccio. Coverage addresses topics in the philosophy of mind and cognition, concepts, logic and language, action theory, and more. A distinctive feature of this work is that it brings together contributions in both (...) French and English, the two major research languages today on the main theme in question. It unites the most renowned specialists in the field as well as many of Claude Panaccio’s former students who have engaged with his work over the years. In furthering this dialogue, the essays render key topics in fourteenth-century thought accessible to the contemporary philosophical community without being anachronistic or insensitive to the particularities of the medieval context. As a result, this book will appeal to a general population of philosophers and historians of philosophy with an interest in logic, philosophy of language, philosophy of mind, and metaphysics. (shrink)

Psychologism in logic is the doctrine that the semantic content of logical terms is in some way a feature of human psychology. We consider the historically influential version of the doctrine, Psychological Individualism, and the many counter-arguments to it. We then propose and assess various modifications to the doctrine that might allow it to avoid the classical objections. We call these Psychological Descriptivism, Teleological Cognitive Architecture, and Ideal Cognizers. These characterizations give some order to the wide range of modern views (...) that are seen as psychologistic because of one or another feature. Although these can avoid some of the classic objections to psychologism, some still hold. (shrink)

This article offers an overview of the risks related to some representations of epigenetics in the process of making social and medical recommendations. After exploring different representations of epigenetics in popular literature and media discourses, I identify some of the premature conclusions that could emerge from such discourses, stressing issues related to parental responsibility—especially as they relate to women—regarding the transmission of epigenetic marks. I then propose some epistemological considerations regarding developmental biology in order to draw a more nuanced picture (...) of epigenetic responsibility. I argue that such considerations are important to clarify our general understanding of epigenetic research as well as its potential translation outside the scientific area. (shrink)

This paper presents and discusses unpublished notes written around 1703 in which Leibniz defends a dual-aspect theory of modification against the common interpretation that force alone is sufficient to account for change. Leibniz’s analysis of the different abstract elements of modification implies a rethinking of what permanence is, what force or an act is, and what a subject is. I show that the conceptual resources developed in these notes provide the means for thinking about the abstract but real constituents of (...) the monad. I argue that active force is only a real abstract, and I defend against certain deflationary readings the notion of primary matter as representing the series of limitations of an entelechy, which is precisely instantiated by the series of perceptions and appetites in a monad. Given this groundwork, the paper finally offers a reconciliatory reading of the different monadic inventories, which present different real abstracts of the monad with varying degrees of logical abstraction. (shrink)