Two substantive comments are made. The first is methodological, and concerns Heyes's proposals for a critical test for theory of mind. The second is theoretical, and concerns the appropriateness of asking questions about theory of mind in nonhuman primates. Although Heyes warns against the apparent simplicity of the theory of mind hypothesis, she underplays the linguistic implications.

This paper attempts a critical examination of the thesis that an apprenticeship to a Lancaster druggist was, for Edward Frankland, a wholly inappropriate preparation for a career in chemistry. This view, which stems directly from Frankland himself, is defective in several ways. It fails to take into account certain benefits which he accepted as valuable; it implies an exceptional degree of ‘negligence’ which was in fact quite typical; it ignores certain positive indicators of the value of such experience; and it (...) involves questionable value-judgments on the behaviour of one individual, the druggist Stephen Ross. Although Frankland's perspective may be no longer acceptable, the reasons for its inadequacy are perhaps the most important aspect of the whole affair. Their identification raises questions of historiography of wider significance, while the whole episode underlines certain issues in scientific training that were to become crucial in the growth of Victorian chemistry in Britain. (shrink)

The Oxford-educated philosopher serves up his trenchant survey of his academic discipline, offering his commentary on Descartes, Anselm Bertrand Russell, Sartre ...

In 'On the nature of truth and falsehood' Russell offers both a multiple relation theory of judgment and a correspondence theory of truth. It has been a prevailing understanding of the Tractatus that Wittgenstein rejects Russell’s multiple relation idea but endorses the correspondence theory. Ramsey took the opposite view. In his 'Facts and Propositions', Ramsey endorses Russell’s multiple relation idea, rejects the correspondence theory, and then asserts that these moves are both due to Wittgenstein. This chapter will (...) argue that Ramsey’s ascriptions are both correct. The extent of the agreement between Ramsey and Wittgenstein will be argued, moreover, to count definitively against standard understandings of Ramsey as a redundancy theorist of truth. Wittgenstein is no correspondence theorist and Ramsey is no redundancy theorist; rather, both philosophers offer identity theories of truth. (shrink)

Wittgenstein held that Russell’s multiple relation theory of judgment fails to explain an atomic judgment’s representation of entities as combined. He demonstrated this failure as follows. Under the multiple relation theory, an atomic judgment is a complex whose relating relation is judgment, the universal, and whose terms include the entities the judgment represents as combined. Taking such a complex we may arrive through the substitution of constituents at a complex whose relating relation is again judgment but whose terms do (...) not include entities which are logically suited for combination. This second judgment complex will not represent any of its terms as combined, for entities that are logically uncombinable are unrepresentable as combined. Russell’s theory does not, however, explain how the original judgment differs from the complex arrived at by the substitution of constituents such that the former but not the latter represents certain of its terms as combined. (shrink)

It is not immediately clear from Wittgenstein’s Tractatus how to connect his idea there of an object with the logical ontologies of Frege and Russell. Toward clarification on this matter, this paper compares Russell’s and Wittgenstein’s versions of the thesis of an atomic fact that it is a complex composition. The claim arrived at is that whilst Russell (at times at least) has one particular of the elements of a fact – the relation – responsible for the (...) unity of the whole, for Wittgenstein the unity of a fact is the product of copulative powers inherent in all its elements. All kinds of constituents of Tractarian facts – all kinds (forms) of object – are, to use Fregean terminology, unsaturated. (shrink)

According to the truthmaker theory that we favour, all contingent truths are made true by existing facts or states of affairs. But if that is so, then it appears that we must accept the existence of the negative facts that are required to make negative truths (such as 'There is no hippopotamus in the room.') true. We deny the existence of negative facts, show how negative truths are made true by positive facts, point out where the (reluctant) advocates of negative (...) facts (Russell, Armstrong, et al.) went wrong, and demonstrate the superiority of our solution to the alternatives. (shrink)

It has been much debated whether Tractarian objects are what Russell would have called particulars or whether they include also properties and relations. This paper claims that the debate is misguided: there is no logical category such that Wittgenstein intended the reader of the Tractatus to understand his objects either as providing examples of or as not providing examples of that category. This is not to say that Wittgenstein set himself against the very idea of a logical category: quite (...) the contrary. However, where Russell presents his logical variety of particulars and the various types of universal, and Frege presents his of objects and the various types of function, Wittgenstein denies the propriety of such a priori expositions. Wittgenstein envisages a variety of logical types of entity but insists that the nature of these types is something to be discovered only through analysis. (shrink)

This chapter focuses on picture theory, which is sometimes spoken of as a theory of the proposition. By a proposition, Wittgenstein like Frege means something that determines its sense by means of a correlation between the mode of combination of its constituent symbols and the structure of its sense. It has been an orthodoxy amongst Tractatus interpreters, and continues to be such in the wider philosophical community, that Wittgenstein follows the Russell in offering a correspondence theory of truth. The (...) expression of a Tractarian fact provides that fact's mode of combination, and from here there can be no further question as to the ontological types of its constituents. Tractarian facts, it is however added, are not truth conditions but items whose existence explains the obtaining of truth conditions: a Tractarian atomic fact is not a truth condition but a truthmaker. (shrink)

Wittgenstein responds in his Notes on Logic to a discussion of Russell's Principles of Mathematics concerning assertion. Russell writes: "It is plain that, if I may be allowed to use the word assertion in a non-psychological sense, the proposition "p implies q" asserts an implication, though it does not assert p or q. The p and the q which enter into this proposition are not strictly the same as the p or the q which are separate propositions." (PoM (...) p35) Wittgenstein replies: "Assertion is merely psychological. In not-p, p is exactly the same as if it stands alone; this point is absolutely fundamental." (NB p95) Wittgenstein's response is intriguing, not least because of the centrality to his Tractatus of the idea that a proposition says something. This paper will examine that idea, distinguishing it from 'merely psychological' assertion, and explore in this context how we should understand the occurrence of a Tractarian proposition within another. (shrink)

often insisted existence in mathematics means logical consistency, and formal logic is the sole guarantor of rigor. The paper joins this to his view of intuition and his own mathematics. It looks at predicativity and the infinite, Poincaré's early endorsement of the axiom of choice, and Cantor's set theory versus Zermelo's axioms. Poincaré discussed constructivism sympathetically only once, a few months before his death, and conspicuously avoided committing himself. We end with Poincaré on Couturat, Russell, and Hilbert.

Many beginning students in philosophy of language find themselves grappling with dense and difficult texts not easily understood by someone new to the field. This book offers an introduction to philosophy of language by explaining ten classic, often anthologized, texts. Accessible and thorough, written with a unique combination of informality and careful formulation, the book addresses sense and reference, proper names, definite descriptions, indexicals, the definition of truth, truth and meaning, and the nature of speaker meaning, as addressed by Frege, (...) Kripke, Russell, Donnellan, Kaplan, Evans, Putnam, Tarski, Davidson, and Grice. The explanations aim to be as simple as possible without sacrificing accuracy; critical assessments are included with the exposition in order to stimulate further thought and discussion. Philosophy of Language will be an essential resource for undergraduates in a typical philosophy of language course or for graduate students with no background in the field. It can be used in conjunction with an anthology of classic texts, sparing the instructor much arduous exegesis. ContentsFrege on Sense and Reference • Kripke on Names • Russell on Definite Descriptions • Donnellan's Distinction • Kaplan on Demonstratives • Evans on Understanding Demonstratives • Putnam on Semantic Externalism • Tarski's Theory of Truth • Davidson's Semantics for Natural Language • Grice's Theory of Speaker Meaning. (shrink)

Plato’s Philebus is motivated by a question concerning the relationships among pleasure, wisdom, knowledge, and the good human life. Something of a philosophical tour de force, it also contains discussions of numerous important Platonic subjects like cosmic intelligence, distinctions among intellectual capacities, and the method of dialectical inquiry through division and collection. But the riches of the dialogue are obscured by its exceptional difficulty, a frequent grievance from commentators beginning at least with Galen. Plato’s Philebus: A Philosophical Discussion is an (...) indispensable new contribution to our understanding of this important and challenging dialogue, containing a wealth of new... (shrink)

In Minds and Bodies, one of philosophy's most dynamic and versatile thinkers gathers nearly forty review essays written over the past twenty years for publications of a nonspecialized kind. They cover biography, particularly of Russell and Wittgenstein; philosophy of mind, especially consciousness; and ethics, with an emphasis on applied ethics. Lucid and accessible, these essays together form a vivid picture of contemporary philosophy for the general reader, and will be welcomed by those within the philosophical community for their crisp (...) critical insights and rigorous assessments. (shrink)

Paul Russell begins his book by rightly noting, “almost all commentators over the past two and a half centuries have agreed that Hume’s intentions in the Treatise should be interpreted in terms of two general themes: skepticism and naturalism” (vii). The skeptical reading interprets Hume’s principal aim as showing that “our ‘common sense beliefs’ (e.g. belief in causality, independent existence of bodies, in the self, etc.) lack any foundation in reason” (4). The naturalist reading interprets Hume’s aims according to (...) the “science of man,” derived from experience and observation. As described in the Introduction to the Treatise, this science is meant to explain the “principles of human nature” and thereby put the other sciences “on a foundation entirely new, and the only one upon which they can stand with any security.” The “riddle” of the Treatise is how to understand the relationship between the skeptical and naturalistic dimensions of the work—dimensions that “seem to be equally essential to what [Hume] is trying to achieve,” but which nevertheless appear “inherently opposed and irreconcilable” (7). Russell puts forward a novel and challenging solution. He argues that the relationship of the skepticism and naturalism in the Treatise can be made intelligible when we see that “it is problems of religion broadly conceived, that hold the contents of the Treatise together as a unified work” (viii). “More specifically,” he goes on, “the direction and structure of Hume’s thought in the Treatise is shaped on one side by his attack on the Christian metaphysics and morals and on the other by his efforts to construct in its place a secular, scientific account of morality.” ...It is difficult to do justice in such a short review to the sophistication of Russell’s analyses. To take one of many examples, Russell explains how Hume’s theory of ideas, rather than something simply adopted from Locke and Berkeley, instead follows Hobbes and expresses irreligious intentions by defending skepticism about our knowledge of God. Russell shows how religious thinkers tried to respond to the claim made by Hobbes that we have no idea of God. Either they insisted that we have knowledge of God through reason rather than through the senses, or they defended the view that our idea of God comes from analogy with ideas of ourselves and of nature. Hume is largely silent about our idea of God, but it is clear, as Russell argues, that he is aware of these debates and that his theory knowingly undermines claims by religious thinkers to possess knowledge of God. We have no simple impressions from which we can derive the idea of God, nor do we have ideas of the divine attributes (power, unity, intelligence, etc.) sufficient to provide us with a clear idea of the divinity. ..... Any criticisms of The Riddle of Hume’s Treatise, however, must be placed within the broader take-away: this book is a triumph and a model for work in the history of philosophy. It offers a powerful reading of the Treatise and of Hume’s intentions in writing it, while also correct- ing common misunderstandings about Hume’s place in early modern thought. It deserves to be read by anyone interested in Hume or in early modern philosophy. (shrink)

William Sweet gathers responses to the major writings of the leading figures of the British idealist movement, including contributions by Bertrand Russell, John Dewey, Sir Ernest Barker, Sir Henry Jones, R.F.A. Hoernle, J.S. MacKenzie, Brand Blanshard and others.

Insights into the history of chemistry Content Type Journal Article DOI 10.1007/s11016-010-9482-4 Authors Peter J. Ramberg, Truman State University, 100 E. Normal, Kirksville, MO 63501, USA Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.

El autor intenta mostrar que el concepto de ley es totalmente innecesario y que solo sirve para crear confusiones y generar falacias. Para ello muestra que la supuesta “ley de la causalidad” es inconsistente y que la ciencia no requiere de ella más que en una primera fase. Las ciencias maduras usan relaciones, en concreto, relaciones mediante ecuaciones diferenciales para desempe\ nar el papel que se le quiere otorgar a la ley de la causalidad. Despues de hacer esto, el autor (...) presenta varias confusiones relacionadas con el concepto de causa, y su solución si se asume lo anteriormente dicho. (shrink)

In the mid-eighteenth century David Hume argued that successful prediction tells us nothing about the truth of the predicting theory. But physical theory routinely predicts the values of observable magnitudes within very small ranges of error. The chance of this sort of predictive success without a true theory suggests that Hume's argument is flawed. However, Colin Howson argues that there is no flaw and examines the implications of this disturbing conclusion; he also offers a solution to one of the (...) central problems of Western philosophy, the problem of induction. (shrink)

Aimed at philsophy graduates this book investigates mental content in a systematic way and advances a number of claims about how mental content states are related to the body and the world. Internalism is the thesis that they are; externalism is the theory that they are not.