In several works on modality, G. H. von Wright presents tree structures to explain possible worlds. Worlds that might have developed from an earlier world are possible relative to it. Actually possible worlds are possible relative to the world as it actually was at some point. Many logically consistent worlds are not actually possible. Transitions from node to node in a tree structure are probabilistic. Probabilities are often more useful than similarities between worlds in treating counterfactual conditionals.

Although the truth value (falsity) of "Henry knows that (dogs live in trees and beavers chew wood)" remains unchanged no matter what sentence is substituted in it for "beavers chew wood", we want not to regard the second as a truth functional component (tfc) of the first. Many definitions of "tfc" (e.g., Quine's) fail to insure satisfaction of the following principle: if p is a component of r which is in turn a component of q, then p is a tfc (...) of q if and only if 1) p is also a tfc of r, and 2) r is also a tfc of q. (shrink)

McTaggart argues that the A series, which orders events with reference to past, present, and future, involves an inescapable contradiction. The significant difference between the earlier version of his argument (Mind, 1908) and the version in The Nature of Existence, Volume II, Chapter 33 (1927), has often gone unnoticed. His arguments are all invalid; the conclusion can be rejected without rejecting any premiss. It is therefore unnecessary to adopt any philosophical thesis about time (e.g., that some token-reflexive analysis of tensed (...) statements is adequate) to avoid McTaggart's final conclusion that time is unreal. (shrink)

Given anti-individualism, a subject might have a priori (non-empirical)knowledge that she herself is thinking that p, have complete and exhaustive explicational knowledge of all of the concepts composing the content that p, and yet still need empirical information (e.g. regarding her embedding conditions and history) prior to being in a position to apply her exhaustive conceptual knowledge in a knowledgeable way to the thought that p. This result should be welcomed by anti-individualists: it squares with everything that compatibilist-minded anti-individualists have (...) said regarding e.g. the compatibility of anti-individualism and basic self-knowledge; and more importantly it contains the crux of a response to McKinsey-style arguments against anti-individualism. (shrink)

One of the central points of contention in the epistemology of testimony concerns the uniqueness (or not) of the justification of beliefs formed through testimony--whether such justification can be accounted for in terms of, or 'reduced to,' other familiar sort of justification, e.g. without relying on any epistemic principles unique to testimony. One influential argument for the reductionist position, found in the work of Elizabeth Fricker, argues by appeal to the need for the hearer to monitor the testimony for credibility. (...) Fricker (1994) argues, first, that some monitoring for trustworthiness is required if the hearer is to avoid being gullible, and second, that reductionism but not anti-reductionism is compatible with ascribing an important role to the process of monitoring in the course of justifiably accepting observed testimony. In this paper we argue that such an argument fails. (shrink)

Given a rich environment, how do we decide on what information to use? A view of a single entity (e.g., a group of birds) affords many distinct interpretations, including their number, average size, and spatial extent. An enduring challenge for cognition, therefore, is to focus resources on the most relevant evidence for any particular decision. In the present study, subjects completed three tasks—number discrimination, surface area discrimination, and convex hull discrimination—with the same stimulus set, where these three features were orthogonalized. (...) Therefore, only the relevant feature provided consistent evidence for decisions in each task. This allowed us to determine how well humans discriminate each feature dimension and what evidence they relied on to do so. We introduce a novel computational approach that fits both feature precision and feature use. We found that the most relevant feature for each decision is extracted and relied on, with minor contributions from competing features. These results suggest that multiple feature dimensions are separately represented for each attended ensemble of many items and that cognition is efficient at selecting the appropriate evidence for a decision. (shrink)

This paper develops a normative account of epistemic luck, according to which the luckiness of epistemic luck is analyzed in terms of the expectations a subject is entitled to have when she satisfies the standards of epistemic justification. This account enables us to distinguish three types of epistemic luck—bad, good, and sheer—and to model the roles they play e.g. in Gettierization. One controversial aspect of the proposed account is that it is non‐reductive. While other approaches analyze epistemic luck in non‐epistemic (...) terms—either in modal terms (lack of safety) or in agential terms (lack of creditworthiness)—I argue that the non‐reductive nature of the normative account is actually a selling‐point relative to its competitors. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 40.1 (2002) 128-130 [Access article in PDF] Book Review Kant and the Foundations of Analytic Philosophy Robert Hanna. Kant and the Foundations of Analytic Philosophy. New York: Oxford University Press, Clarendon Press, 2001. Pp. xv + 312. Cloth, $65.00. Robert Hanna's book has an ambitious two-fold agenda. Its historical agenda is to prompt a reassessment of the role Kant played in the foundations (...) of analytic philosophy. The ideological agenda is to reassess the status of the relevant Kantian doctrines--in particular, his views regarding the nature of necessity, the analytic-synthetic distinction, and the nature and scope of the a priori--in the face of what Hanna takes to be the "crisis" (11) facing analytic philosophy today. Hanna views the elements of this two-fold agenda as inextricably [End Page 128] linked: when we see how the analysts failed to appreciate much of the subtlety and power of Kant's arguments, we will be in a position both to appreciate why the early analysts were not able to bring their official projects to completion, and to reassess the plausibility of various Kantian doctrines that have been considered untouchable during the dominance of analytic philosophy.Hanna's Kant, the Kant of the first Critique, is bent on answering two fundamental problems regarding the nature of cognition. Hanna characterizes the first problem as the "modal" problem, that of saying how the same judgment "can... be at once necessarily true, refer to the real or natural world in a substantive way, yet cognizable to creatures minded like us apart from all sense experience" (1). The second problem is the "semantic" problem, that of stating "how meanings are possible" (3). Hanna's book is organized around his characterization of Kant's answers to these questions and his defense of the resulting position in the face of the analytic tradition's reaction.In assessing Kant's role in the analytic tradition, Hanna borrows much from previous historically sensitive philosophers interested in this period. Three such authors figure prominently: Coffa and his seminal book The Semantic Tradition from Kant to Carnap; Friedman (with special attention to his Reconsidering Logical Positivism); and Dummett (whose work on Frege is cited throughout). From Coffa and Friedman, Hanna endorses the thesis that at its core the analytic tradition is a reaction to the Kantian conception of the a priori. Hanna accepts as well that the early analysts were united by the aim of exploiting technical developments in logic and semantics as part of a case against Kant's conception of the a priori. Where Hanna disagrees with, e.g., Coffa is over the status of the analysts' anti-Kantian arguments: where Coffa appears to endorse the cogency of those arguments, Hanna suggests that Kant's position is much more defensible, and the analysts' positions and arguments much more vulnerable, than has previously been thought.It is worth noting some of the many virtues of Foundations. Hanna makes an interesting case for the idea that at a certain level of description there is an important agreement between Kant and Frege regarding the evils of psychologism about logic. This will come as news to those who have treated Kant as among the targets in Frege's critique of psychologism. In addition, Hanna develops Kant's conception of analyticity and presents a robust defense of that conception against some prevalent criticisms; proffers an intriguing comparison between Kant's pure intuition and Wittgenstein's view of the transcendental nature of logic (221-3); and makes a plausible case for the provocative conclusion that the conceptualism of early analytic philosophy is in contrast with Frege's own philosophical attitude (233).At the same time, some complaints are worth registering. To those (like me) who do not encounter Kantian vocabulary on a regular basis, Hanna's reliance on that vocabulary has the effect of rendering many passages heavy-going and difficult to unpack. (While Hanna does attempt to provide explications of the vocabulary, I sometimes found these explications themselves to be difficult to understand.) Secondly, Hanna is sometimes... (shrink)

The Irish poet W. B. Yeats once wrote, with great sapience and perception: Nor dread, nor hope attend A dying animal; A man awaits his end Dreading and hoping all. That death has ever been a problem to man is attested as far back as we can trace our species in the archaeological record—indeed, it seems to have been a problem even for that immediate precursor of homo sapiens, the so-called Neanderthal Man; for he buried his dead.

Before talking about national science as a specific phenomenon we find out the essence of science as a phenomenon in general. We note that science is one of the most complex phenomena of social life. Complex understanding of it complicates the fact that science is structurally extremely complex, polyfunctional, historically variable, with many of its faces included in this or that sphere of social life. It therefore appears as an extremely diverse social phenomenon. This raises some difficulties in developing a (...) general definition of it. As G. Volkov correctly pointed out, "there is nothing simpler than giving a definition to any phenomenon, when the whole thing is only in the formulation, and there is nothing more complicated than when it comes to the concentration in the concentrated form of the very essence of the object under study". (shrink)

In questo volume sono raccolti gli scritti frutto della ricerca effettuata nell’ambito del Progetto: “Ontologia Formale e Ontologie: uno Strumento per il Dialogo Interdisciplinare e Interculturale”. Scopo del progetto è mostrare al pubblico intellettuale italiano, sia di estrazione scientifica che umanistica, le potenzialità dello strumento dell’ontologia in generale, e dell’ontologia formale in particolare, per il dialogo costruttivo interdisciplinare e interculturale. Dialogo interdisciplinare per il rapporto fra discipline scientifiche e umanistiche, dialogo interculturale per il rapporto fra le diverse culture e religioni (...) in una società globalizzata. (shrink)

Reviewer gives a survey of the new phylogenetic theory of language recently published by Prof. Dr. G. Révész, founder and director of the Laboratory for experimental psychology of the University of Amsterdam (see notes under)). The starting-point of the theory is the conception of "contact", defined by the author as the innate trend to be together or to co-operate, common to all socially living beings. This "theory of contact" is developed by the author in different directions and gives rise to (...) the distinction 1. of three degrees of communication: cry (Zuruf), call (Anruf) and word (Wort) ("Dreistufentheorie"), 2. of three periods in the development of language: a pre-phase (Vorphase), a primevalphase (Frühphase) and a final phase (Vollphase ("Dreiphasentheorie") and 3. of three main functions of language: impelling (Aufforderung), indication (Mitteilung) and interrogation (Frage) ("Dreifunktionstheorie"), and leads to the conclusion that most probably the oldest form of human intercourse was restricted to the function of impelling ("Imperativsprache"). Prof. R. lays great stress on the in his opinion unsurmountable barrier between human and animal forms of communication. (shrink)

The aim of this article is to offer what I consider to be necessary substantiati for the view that the description of the walk which acts as a frame for the singing contest in Id. 7 is based on a precise knowledge of the geography of t island of Cos and that the poem thus displays a topographical realism unique Greek pastoral.

There are some who would question the need to republish papers that have already appeared elsewhere. Walter Pauel once said that scholars should think in terms of books rather than research papers since the latter become lost in the literature. When he told me this year ago I was not entirely convinced. Surely the young scholar must publish papers to secure his academic position. In addition, throughout his career he attends conferences many of which will require the publication of his (...) papers in the resultant conference volumes. By their very nature such papers often discuss topics in greater detail than that scholar's subsequent books. In this case also the papers tend to become "lost" even when there exit extensive guides to the literature such as the Critical Bibliography published annually in Isis for historians of science. Many of my own papers over the past forty-five years have indeed appeared in such conference volumes as in journals. (shrink)