I argue that there is tension in Wittgenstein’s position on trivialities (i.e. tautologies and contradictions) in the Tractatus, as it contains the following claims: (A) sentences are pictures; (B) trivialties are not pictures; (C) trivialities are sentences. A and B follow from the “picture theory” of language which Wittgenstein proposes, while C contradicts it. I discuss a way to resolve this tension in light of Logicality, a hypothesis recently developed in linguistic research. Logicality states that trivialities are (...) excluded by the grammar, and that under the right analysis sentences which look trivial are in fact contingent. The tools necessary to support Logicality, I submit, were not available to Wittgenstein at the time, which explains his commitment to C. I end the paper by commenting on some points of contact between analytic philosophy and the generative enterprise in linguistics which are brought into relief by the discussion. (shrink)

This book is intended to challenge Frege's Begriffsschrift as the foundation of philosophical work which either uses formal methods or is inspired by them s it attempts the synthesis of the antithetical ideas associated with Wittgenstein, the Picture-Theory, and the language-game conceived as the untimate level of explanation.

In earlier papers, I have sketched some aspects of a semantical theory of quantification, developed in terms of the concept of a model set. Furthermore, I have indicated a method of relating this semantical, or half-semantical, theory to the usual deductive methods. This method turned on considering proofs of logical truth as frustrated attempts to describe a counter-example to the sentence to be proved. In this paper, I propose to relate some of the observations that were made in (...) the earlier papers to the doctrines which are generally known as picture theories of language. My main thesis is that these theories can be related rather closely to the logic of quantification by developing them in a suitable direction, and by using the concept of a model set as a mediating link. (shrink)

I argue that the current view (as held by, eg., Warnock, Anscombe and Stenius) of Wittgenstein's theory of language in the Tractates is mistaken. This view maintains that Wittgenstein's theory is one of 'isomorphism'; that, roughly, a sentence has meaning in virtue of its being a facsimile of a fact or possible fact. But a detailed study of significant passages in the Tractattis shows that Wittgenstein held no such view. His use of important terms, such as Salz, (...) Bild, Sachverhalt, Tatsache , etc., has been crucially misunderstood. There is no isomorphism. The theory is not about sentences at all, but about talking sense. (shrink)

The proposition 'seattle is west of spokane' has three parts: two\nproper names and the predicate 'is west of.' the fact pictured has\ntwo: seattle and spokane. but the picture theory holds that there\nmust be a one-to-one correspondence between fact and proposition.\nhow does wittgenstein solve this problem in the 'tractatus'? on one\ninterpretation the fact contains a third part, a relation, corresponding\nto the predicate (evans and stenius). on another the proposition\nis transformed by analysis into a two-dimensional diagram, the predicate\ndisappearing in the (...) process (copi and anscombe). both are rejected.\ntwo new suggestions are offered: (1) the number of possible configurations\nof 'simple' objects is not greater than the number concatenations\nof names, so no predicate is needed in 'elementary' propositions;\n(2) or the predicate can be taken as the analogue of the direction\narrow on a map and not counted as a part of the proposition. (shrink)

The author presents a rejoinder to mister schwyzer, arguing against\nschwyzer's claim that the author's view of wittgenstein's theory\nof language in the 'tractatus' is mistaken. (staff).

I develop one account of propositions as pictures sharing logical form with what they depict. Two concepts of simplicity in the "tractatus" are then isolated. Since characterization of sachverhalten as configurations of referential simples does not entail their inferential simplicity, By rejecting the tractarian theory of inference, I retain the picture theory without commitment to atomistic ontology. Interpretation of inference as performance then gives rise to a second sense of picturing.

It is suggested that wittgenstein's picture theory of meaning is, In part a synthesis and resolution of the early metaphysics of moore and the theory of judgment held by russell about 1910. Moore's theory of the objective existence of concepts and their propositional role is considered. Russell's unsuccessful attempt at the problem of the false proposition is discussed. The ptm offers a more successful solution, Through the concept of logical form, Akin to the russellian concept of (...) order. But this solution still fails because it does not hold for ordinary language. (shrink)

The general features of a picture theory of meaning (PTM) are stated. The PTM is then applied to a particular ontological perspective, and suggestions are made for generalizing the PTM to most ontological perspectives. Several ways around the classic problem for the PTM-that the language used to describe a situation must have at least one more component than the situation described-are offered.

For parents wanting their children to get a head start in reading, it can be a challenge to find something that will maintain their attention. Now, learning to read can become a fun and enter- taining thing to do with the help of an extraordinary cat. Join Cleo-cat-tra as she brings reading to life in the charming picture book Rhymes and Times with Cleo-cat-tra by Lucy T. Geringer and illustrated by Bernardita Cox Kollock. Rhymes and Times of Cleo-cat-tra is (...) a picture book about a special cat named Cleo-cat-tra. She is not an ordinary cat, as she cleverly rhymes about animals, people, and things she encounters inside and outside her house. The rhymes are silly which make learning a fun and creative pro- cess for kids and for parents to share. This delightful story makes use of colorful illustrations to heighten a child's imagination. Its simple text and brief sentences make reading easy for the early reader. It is also a great book for children who are learning English and can be enjoyed both at home and in school through lively interactive discussions between students and teachers. It is a book for all ages. (shrink)

The papers collected in this volume exemplify some of the trends in current approaches to logic, language and computation. Written by authors with varied academic backgrounds, the contributions are intended for an interdisciplinary audience. The first part of this volume addresses issues relevant for multi-agent systems: reasoning with incomplete information, reasoning about knowledge and beliefs, and reasoning about games. Proofs as formal objects form the subject of Part II. Topics covered include: contributions on logical frameworks, linear logic, and different (...) approaches to formalized reasoning. Part III focuses on representations and formal methods in linguistic theory, addressing the areas of comparative and temporal expressions, modal subordination, and compositionality. (shrink)

In the Tractatus Logico-Philosophicus Wittgenstein appeals to clarity when he characterises the aim, task and results of philosophy. In this essay I suggest that his ‘picture theory’ of language implies that clarity has aesthetic significance in philosophical work. Wittgenstein claims that the task of philosophy is to make thoughts clear. In the ‘picture theory’ of thought and language, a thought expressed in language is a proposition with a sense and a proposition is a (...) picture of reality. The question I pose is: how should we construe clarity, if making a thought clear is making clear a picture of reality? Following a close analysis of the picture theory, paying particular attention to the notions of depicting, presenting and mirroring, I conclude that the result of philosophical work – the clarification of propositions – will be pleasurable, inexpressible and intrinsically valuable. For these reasons I suggest that the attainment of a clear thought is an aesthetic experience. (shrink)

Es una opinion muy extendida la de mantener que la "teoria representativa del lenguaje ("picture theory of language"; "trl" en adelante), cuya presentacion mas fuerte la hizo wittgenstein en el "tractatus logico-philosophicus", no sobrevivio al ataque que el mismo le hizo en sus "investigaciones filosoficas" y al que le hicieron los filosofos del "lenguaje ordinario" de oxford. en este ensayo sostengo que la "trl" sobrevive, de hecho, en oxford, mostrando que tanto j l austin como p f (...) strawson aceptan la que llamare "la teoria del lenguaje de la correspondencia" ("tlc"), que consta de las siguientes cuatro proposiciones: (c1) el lenguaje es una cosa, el mundo es otra. (c2) cuando menos algunos de los elementos del lenguaje estan correlacionados con algunos objetos en el mundo. (c3) la estructura basica del lenguaje debe ser similar a la estructura basica del mundo. (c4) la relacion entre palabras y mundo es convencional. estas proposiciones son, o bien las mismas o bien tan solo ligeramente mas debiles que cuatro proposiciones que caracterizan la trl. (shrink)

We tested if the newly designed ToMotion task reflects a single construct and if the atypical groups differ in their performance compared to typically developing peers. Furthermore, we were interested if ToMotion maps a developmental sequence in a Theory of Mind performance as exemplified by increasing difficulty of the questions asked in every item. The sample consisted of 13 adolescents that have been diagnosed with a developmental language disorder and 14 adolescents that are deaf or hard of hearing. (...) All of these adolescents were in special schools for secondary vocational education. The control group existed of 34 typical developing adolescents who were in regular intermediate vocational education, ranging from level 2 to 4. The ToMotion, available in a spoken Dutch version and in a version in Sign Language of the Netherlands, was used to map ToM abilities. An attempt has been made to fill the gap of missing studies of ToM in adolescents by developing a new measuring instrument. In conclusion, assessing ToM with the ToMotion results in a picture that DHH adolescents score lower than TD peers. However, their scores are as consistent as those of the TD peers. The picture of DLD adolescents is the reverse. They show no differences in ToM scores, but seem to be somewhat more inconsistent compared to TD peers. We provide a discussion on those results and its implications for future research. What this paper adds? The current study introduces a new visual Theory of Mind task, ToMotion, designed specifically to assess ToM in adolescents in an ecologically valid way and adapted to the needs of adolescents with language and communication difficulties. (shrink)

In his classic work on Wittgenstein’s Tractatus Erik Stenius described Wittgenstein’s study as a critique of pure language, thus pointing to a connection between Wittgenstein’s philosophy and Kant’s critique of pure reason. Besides similarities, there also seems be important differences between the two philosophers. In Kant’s critique, one discerns a subject who does something, namely, constructs the world of experience, while Wittgenstein draws a picture in which neither an agent nor an act is visible. Like Kant and Wittgenstein, (...) contemporary normative theories of assertion are also interested in limits, although in limits set to assertions. They appear to pay special attention to the one who asserts and to the act of asserting. This paper is an effort to search for the traces of normative theories of assertion in Wittgenstein’s Tractatus by focusing on the one who uses language and on the limits of that use. It is shown that both in Wittgenstein and in normative theories of assertion, there is an important ethical dimension, which, however, plays different roles in the two approaches. It is argued that despite the differences in the ways of construing the limits of language, Tractatus and normative theories of assertion share similar ethical concerns. (shrink)

I argue that the picture theory provides both a common referential hase and a common logical syntax for languages embodying alternative conceptual schemes. I offer an analysis of depiction, explicating the Tractarian concepts of pictorial structure, pictorial relationship, and representational form. Significant failure of reference and the existence of languages with incompatible ontological commitments show that on the molar level depiction is not required for sense. Using three premises, taken to be axiomatic for Wittgenstein, I show that analysis (...) leads to a base of elementary propositions which must depict in order to be significant. There, the relations between pictorial structure, pictorial relationship and representational form are such that reference is secured and conceptual relativity precluded. (shrink)

The leading models of disability struggle to fully encompass all aspects of “disability.” This difficulty arises, the author argues, because the models fundamentally misunderstand the nature of disability. Current theoretical approaches to disability can be understood as “nounal,” in that they understand disability as a thing that is caused or embodied. In contrast, this paper presents an adverbial perspective on disability, which shows that disability is experienced as a personally irremediable impediment to daily-living tasks or goals-like-ours. The picture (...) class='Hi'>theory of disability technically constitutes a species of relational approach because its analysis references the interplay between an individual and their environment; it differs from other relational accounts, however, by interpreting disability as a certain kind of negative experience—rather than a function of that relationship. This purely descriptive theory makes no normative claims about disability and operates as both a mechanism for the evaluation of the experience of disability and a heuristic device for the proper interpretation of disability. When disability is reframed in this way, the theory offers a particularist perspective which shows if, when, where, and how disability is experienced. (shrink)

My dissertation establishes the basis for a systematic outlook on the role language plays in human cognition. It is an investigation based on a cognitive conception of language, as opposed to communicative conceptions, viz. those that suppose that language plays no role in cognition. I focus, in Chapter 2, on three paradigmatic theories adopting this perspective, each offering different views on how language contributes to or changes cognition. -/- In Chapter 3, I criticize current views held (...) by dual-process theorists, and I develop a picture of the complex interaction between language and cognition that I deem more plausible by using resources from the literature on the evolution of the faculty of language. Rather than trying to find one general explanation for all cognitive processes, I take seriously the idea that our mind is composed of many subsystems, and that language can interact and modify each in different ways. There is no reason offered in the empirical literature—besides maybe parsimony—that suggest that language has to interact in the same ways with all cognitive processes. Yet, this is seemingly taken for granted, especially within dual-process approaches. -/- On my view, it is a central requirement for a theory of the role of language in cognition to explain how language might have effects, at once, on and within various parts of cognition. In Chapter 4, I explore how this framework can modify how we think about some experiments in psychology, specifically in research on categorization. My idea is that language, once it evolved, changed how some cognitive capacities worked and interacted with each other, but did so in more than one or two ways. Cognitive systems are changed in very different ways—sometimes the transformation is very subtle, such as our way of forming categories by using how similar objects are, while other times it is deep and changes the very way the system works. (shrink)

In a paper published in this journal, Vol. 5, No. 1, 1962, pp. 46?64, Mr. H. R. G. Schwyzer has argued that ?the current view (as held by, eg., Wamock, Anscombe and Stemus) of Wittgenstein's theory of language in the Tractatus is mistaken?. The editor of the journal has asked me for a reply. My reply concerns only my own book, and it amounts to the statement that Mr. Schwyzer's attack on the book has very little to do (...) with what is said in it. (shrink)

In books such as The World Within the World and The Anthropic Cosmological Principle, astronomer John Barrow has emerged as a leading writer on our efforts to understand the universe. Timothy Ferris, writing in The Times Literary Supplement of London, described him as "a temperate and accomplished humanist, scientist, and philosopher of science--a man out to make a contribution, not a show." Now Barrow offers the general reader another fascinating look at modern physics, as he explores the quest for a (...) single, unifying theory that will unlock nature's secrets. Theories of Everything is more than a history of science, more than a popular report on recent research and discoveries. Barrow provides a reflective, intelligent commentary on what a true Theory of Everything would be--its ingredients, its limitations, and what it could tell us about the universe. Never before, he writes, have physicists been so confident and so eager in the hunt for this "cosmic Rosetta Stone," as he calls it: "a single all-embracing picture of all the laws of nature from which the inevitability of all things seen must follow with unimpeachable logic." He lays out eight essential ingredients for a Theory of Everything and then explores each in turn, tracing how our knowledge has developed and how scientific discovery relates to our changing philosophy and religious thought in each area. Some of these ingredients are obvious--the laws of nature must be explained, for example, as well as its organizing principles--but others may be surprising, such as broken symmetries and selection biases. A Theory of Everything must account for the fact that the universe is "messy and complicated," he tells us, and for the limitations imposed by the questions we ask and the information we can obtain. The key lies in the remarkable capacity of mathematics to express the fundamental workings of the physical world--a language that the human mind is uniquely equipped to understand and manipulate. Barrow examines what mathematics actually is and describes how it makes the universe intelligible and provides a path to the underlying coherence in nature--which has led, in fact, to arguments that the universe itself is a vast computer. Yet even the most complete theory, even the most comprehensive mathematical explanation, cannot account for the uncomputable varieties of human experience and thought. "No non-poetic account of reality," he writes, "can be complete." In a field where the authorities converse in equations and mathematical notations, John Barrow speaks with the voice of thoughtful and knowledgeable humanist. Written with eloquence and expertise, Theories of Everything establishes a new perspective on humanity's efforts to explain the universe. (shrink)

The nature of changes in mathematics was discussed recently in Revolutions in Mathematics. The discussion was dominated by historical and sociological arguments. An obstacle to a philosophical analysis of this question lies in a discrepancy between our approach to formulas and to pictures. While formulas are understood as constituents of mathematical theories, pictures are viewed only as heuristic tools. Our idea is to consider the pictures contained in mathematical text, as expressions of a specific language. Thus we get formulas (...) and pictures into one linguistic framework, and so we are able to analyse their interplay in the course of history. (shrink)

In this volume, María Cerezo examines Wittgenstein's Tractatus Logico-Philosophicus as a response to some of Frege's and Russel's logical problems. In analyzing the tractarian conditions for the possibility of language, she explains the two main theories of the proposition in Tractatus : the truth-functions theory and the picture theory. Cerezo shows that Wittgenstein initially separates the account of the structure of a proposition from the explanation of its expression. However, contrary to his intention, the combination of (...) these theories creates new difficulties, since the requirements of each theory cannot be fully respected by the others. Cerezo also argues that Wittgenstein's theory of language cannot be fully understood unless attention is paid to his theory of expression and his doctrine of projection by the metaphysical subject. (shrink)

The purpose of this paper is to offer an interpretation of the Tractatus’ proof of the unity of logic and language. The kernel of the proof is the thesis that the sole logical constant is the general propositional form. I argue that the Grundgedanke, the existence of the sole fundamental operation N and the analyticity thesis, together with the fact that the operation NN can always be seen as having no specific formal difference between its result and its base, (...) imply that NN is intrinsic to every elementary proposition. I also argue that the picture theory of proposition is an account of the generation of propositions via naming, and that its crucial idea is that naming is the instantiation of the form of a name, which consists in arbitrarily picking out an object as the meaning of the name from those objects sorted out by the form of the name. It follows that the existential quantifier, that is, NN, is intrinsic to naming (and therefore to every elementary proposition). It is then proven that the sole logical constant is the general propositional form. This, together with the truth‐functionality of logical necessity, implies that logic and language are unified via a general rule – logical syntax. (shrink)

The author attempts to sketch a new picture of language: language is stratified into layers, each layer having a logic of its own and being separated from the others by gaps over which one may jump but which cannot be bridged by logical processes. Philosophers try to bridge the gaps and become entangled in pseudo-problems. Law statements exemplify one stratum, thing statements another, sense-datum statements another, ethical statements another, and so on. The different subject-matters are to be (...) characterized by reference to the different strata, rather than conversely; a sense impression is something that is describable in a language of such-and-such structure; a material object is something which can be described in such-and-such language; and so on. A consequence of the theory is said to be that logic loses its universal validity: logic can only be applied to statements that are homogeneous. However, relations between the layers do claim the attention of the logician. (shrink)

In 1927, Paul Dirac first explicitly introduced the idea that electrodynamical processes can be evaluated by decomposing them into virtual (modern terminology), energy non-conserving subprocesses. This mode of reasoning structured a lot of the perturbative evaluations of quantum electrodynamics during the 1930s. Although the physical picture connected to Feynman diagrams is no longer based on energy non-conserving transitions but on off-shell particles, emission and absorption subprocesses still remain their fundamental constituents. This article will access the introduction and the initial (...) reception of this picture of subsequent transitions (PST) by conceiving of concepts, models, and their representations as tools for the practitioners. I will argue for a multi-factorial explanation of Dirac’s initial, verbally explicit introduction: the mathematical representation he had developed was highly suggestive and already partly conceptualized; Dirac was philosophical flexible enough to talk about transitions when no actual transitions, according to the general interpretation of quantum mechanics of the time, occurred; and, importantly, Dirac eventually used the verbal exposition in the same paper in which he introduced it. The direct impact of PST on the conception of quantum electrodynamical processes will be exemplified by its reflection in diagrammatical representations. The study of the diverging ontological commitments towards PST immediately after its introduction opens up the prehistory of a philosophical debate that stretches out into the present: the dispute about the representational and ontological status of the physical picture connected to the evaluation of the perturbative series of QED and QFT. (shrink)

Husserl’s early picture of explanation in the sciences has never been completely provided. This lack represents an oversight, which we here redress. In contrast to currently accepted interpretations, we demonstrate that Husserl does not adhere to the much maligned deductive-nomological (DN) model of scientific explanation. Instead, via a close reading of early Husserlian texts, we reveal that he presents a unificationist account of scientific explanation. By doing so, we disclose that Husserl’s philosophy of scientific explanation is no mere anachronism. (...) It is, instead, tenable and relevant. We discuss how Husserl and other contemporary thinkers draw theoretical inspiration from the same source—namely, Bernard Bolzano. Husserl’s theory of scientific explanation shares a common language and discusses the same themes as, for example, Phillip Kitcher and Kit Fine. To advance our novel reading, we discuss Husserl’s investigations of grounding, inter-lawful explanation, intra-mathematical explanation, and scientific unification. (shrink)

This book provides a novel interpretation of the ideas about language in Ludwig Wittgenstein's Philosophical Investigations. Travis places the "private language argument" in the context of wider themes in the Investigations, and thereby develops a picture of what it is for words to bear the meaning they do. He elaborates two versions of a private language argument, and shows the consequences of these for current trends in the philosophical theory of meaning.

How is it that sounds from the mouth or marks on a page—which by themselves are nothing like things or events in the world—can be world-disclosive in an automatic manner? In this fascinating and important book, Lawrence J. Hatab presents a new vocabulary for Heidegger’s early phenomenology of being-in-the-world and applies it to the question of language. He takes language to be a mode of dwelling, in which there is an immediate, direct disclosure of meanings, and sketches an (...) extensive picture of proto-phenomenology, how it revises the posture of philosophy, and how this posture applies to the nature of language. Representational theories are not rejected but subordinated to a presentational account of immediate disclosure in concrete embodied life. The book critically addresses standard theories of language, such that typical questions in the philosophy of language are revised in a manner that avoids binary separations of language and world, speech and cognition, theory and practise, realism and idealism, internalism and externalism. (shrink)

Although the change of beliefs in the face of new information has been widely studied with some success, the revision of other mental states has received little attention from the theoretical perspective. In particular, intentions are widely recognised as being a key attitude for rational agents, and while several formal theories of intention have been proposed in the literature, the logic of intention revision has been hardly considered. There are several reasons for this: perhaps most importantly, intentions are very closely (...) connected with other mental states—in particular, beliefs about the future and the abilities of the agent. So, we cannot study them in isolation. We must consider the interplay between intention revision and the revision of other mental states, which complicates the picture considerably. In this paper, we present some first steps towards a theory of intention revision. We develop a simple model of an agent’s mental states, and define intention revision operators. Using this model, we develop a logic of intention dynamics, and then investigate some of its properties. (shrink)

A pioneer in the field, Christian Metz applies insights of structural linguistics to the language of film. "The semiology of film . . . can be held to date from the publication in 1964 of the famous essay by Christian Metz, 'Le cinema: langue ou langage?'"--Geoffrey Nowell-Smith, Times Literary Supplement "Modern film theory begins with Metz."--Constance Penley, coeditor of Camera Obscura "Any consideration of semiology in relation to the particular field signifying practice of film passes inevitably through a (...) reference to the work of Christian Metz. . . . The first book to be written in this field, [ Film Language ] is important not merely because of this primacy but also because of the issues it raises . . . issues that have become crucial to the contemporary argument."--Stephen Heath, Screen. (shrink)

This dissertation examines the general problem of how to give a philosophical account of the nature of representation by looking at three specific philosophies of language and the philosophic treatment of fictional discourse. I argue that Edmund Husserl, Ludwig Wittgenstein, and J. L. Austin all try to give accounts of meaning by arguing for what I call a "closure of meaning" in language. The closure thesis is the claim that some set of criteria can exhaustively determine the ways (...) in which language can be meaningful. This thesis is implicit in Husserl's theory of expressive meaning in the Logical Investigations, in Wittgenstein's picture theory, and in J. L. Austin's pragmatic account of meaning in speech act theory. My general thesis is that the three philosophers in question do not successfully defend the closure thesis for linguistic representation. Since fictional discourse is a source of counterexamples to the closure thesis, I look specifically at two recent philosophical accounts of fiction by David Lewis and John Searle. I criticize these attempts to account for fictional discourse within referential and pragmatic theories of language. Since such attempts are usually part of a closure thesis, my discussion of fiction provides further reasons for doubting the general possibility of accounting for a closure of meaning in language. (shrink)

I present a solution to the epistemological or characterisation problem of induction. In part I, Bayesian Confirmation Theory (BCT) is discussed as a good contender for such a solution but with a fundamental explanatory gap (along with other well discussed problems); useful assigned probabilities like priors require substantive degrees of belief about the world. I assert that one does not have such substantive information about the world. Consequently, an explanation is needed for how one can be licensed to act (...) as if one has substantive information about the world when one does not. I sketch the outlines of a solution in part I, showing how it differs from others, with full details to follow in subsequent parts. The solution is pragmatic in sentiment (though differs in specifics to arguments from, for example, William James); the conceptions we use to guide our actions are and should be at least partly determined by preferences. This is cashed out in a reformulation of decision theory motivated by a non-reductive formulation of hypotheses and logic. A distinction emerges between initial assumptions--that can be non-dogmatic--and effective assumptions that can simultaneously be substantive. An explanation is provided for the plausibility arguments used to explain assigned probabilities in BCT. -/- In subsequent parts, logic is constructed from principles independent of language and mind. In particular, propositions are defined to not have form. Probabilities are logical and uniquely determined by assumptions. The problems considered fatal to logical probabilities--Goodman's `grue' problem and the uniqueness of priors problem are dissolved due to the particular formulation of logic used. Other problems such as the zero-prior problem are also solved. -/- A universal theory of (non-linguistic) meaning is developed. Problems with counterfactual conditionals are solved by developing concepts of abstractions and corresponding pictures that make up hypotheses. Spaces of hypotheses and the version of Bayes' theorem that utilises them emerge from first principles. -/- Theoretical virtues for hypotheses emerge from the theory. Explanatory force is explicated. The significance of effective assumptions is partly determined by combinatoric factors relating to the structure of hypotheses. I conjecture that this is the origin of simplicity. (shrink)

I argue that Sellars’s naturalization of Kant should be understood in terms of how he used behavioristic psychology and cybernetics. I first explore how Sellars used Edward Tolman’s cognitive-behavioristic psychology to naturalize Kant in the early essay “Language, Rules, and Behavior”. I then turn to Norbert Wiener’s understanding of feedback loops and circular causality. On this basis I argue that Sellars’s distinction between signifying and picturing, which he introduces in “Being and Being Known,” can be understood in terms of (...) what I call cybernetic behaviorism. I interpret picturing in terms of cycles of cybernetic behavior and signifying in terms of coordination between cybernetic behavior systems, or what I call triangulated cybernetic behavior. This leads to a formal, naturalistic understanding of personhood as the capacity to engage in triangulated cybernetic behavior. I conclude by showing that Sellars’s thought has the resources, which he did not exploit, for introducing the concept of second-order cybernetics. This suggests that Sellars’s philosophy of mind could be developed in the direction of autopoiesis and enactivism. (shrink)

1. A new wave of subjectivism in the theory of pictorial art began around forty years ago; and since then it has gathered pace in tandem with changing fashions in the philosophy of mind. The initial impetus was provided by the publication of Ernst Gombrich’s 1956 Mellon Lectures, Art and Illusion.1 In this book, and in many subsequent articles and lectures which elaborate its theme, Gombrich argues that the development of Western art – essentially the art of ancient Greece (...) and the art of Western Europe from Giotto to Cezanne – consists in a series of discoveries about the nature of visual perception, and the means by which the effect of visible objects on our senses can be simulated. ‘What may make a painting like a distant view through a window’ he writes, ‘is not the fact that the two can be as indistinguishable as is a facsimile from the original: it is the similarity between the mental activities both can arouse.’ And in another place: ‘The goal which the artist seeks with such self-critical persistence is … a psychological effect.’2 These remarks are concerned with a specific artistic tradition, and with specific pictorial devices, such as foreshortening and shading, which I shall not write about here. But Gombrich’s work launched a search for a general theory of depiction based on the same approach. The search intensified in the wake of Nelson Goodman’s Languages of Art, which persuaded most of its readers that the resemblance theory of depiction could not be made to work, but did not provide a plausible alternative to it. Today there is broad agreement among philosophers that the nature of pictorial art cannot be explained by analysing the relationship between the marks on the surface of a picture and the kinds of objects that they represent. The consensus is that it can only be explained by defining the psychological effect that these marks produce.3 Today, the two most influential theories of depiction that are guided by this general idea are Richard Wollheim’s and Christopher Peacocke’s.. (shrink)

We introduce -ranked preferential structures and combine them with an accessibility relation. -ranked preferential structures are intermediate between simple preferential structures and ranked structures. The additional accessibility relation allows us to consider only parts of the overall -ranked structure. This framework allows us to formalize contrary to duty obligations, and other pictures where we have a hierarchy of situations, and maybe not all are accessible to all possible worlds. Representation results are proved.

The signature of the formal language of mereology contains only one binary predicate which stands for the relation “being a part of” and it has been strongly suggested that such a predicate must at least define a partial ordering. Mereological theories owe their origin to Leśniewski. However, some more recent authors, such as Simons as well as Casati and Varzi, have reformulated mereology in a way most logicians today are familiar with. It turns out that any theory which (...) can be formed by using the reformulated mereological axioms or axiom schemas is in a sense a subtheory of the elementary theory of Boolean algebras or of the theory of infinite atomic Boolean algebras. It is known that the theory of partial orderings is undecidable while the elementary theory of Boolean algebras and the theory of infinite atomic Boolean algebras are decidable. In this paper, I will look into the behaviors in terms of decidability of those mereological theories located in between. More precisely, I will give a comprehensive picture of the said issue by offering solutions to the open problems which I have raised in some of my papers published previously. (shrink)

Lingualism claims there is no thought without language. At the other end of the theoretical spectrum, strong nativist 'Language of Thought' theories hold that public language is inessential to private thought. For an adequate empirical description of the ontogeny of thought and language, however, we need an intermediate position recognizing the dialectical interplay between pre-linguistic thought, language acquisition and the development of full-fledged linguistic reason. In this article recent findings from developmental and comparative psychology are (...) reviewed that highlight the need for such a dialectical picture. These findings concern basic cognitive capacities common to pre-linguistic infants and many non-linguistic animals, specific social-cognitive abilities in human infants that enable language acquisition, and the influence of language on the subsequent cognitive development. (shrink)

In this book, Yaqub describes a simple conception of truth and shows that it yields a semantical theory that accommodates the whole range of our seemingly conflicting intuitions about truth. This conception takes the Tarskian biconditionals as correctly and completely defining the notion of truth. The semantical theory, which is called the revision theory, that emerges from this conception paints a metaphysical picture of truth as a property whose applicability is given by a revision process rather (...) than by a fixed extension. The main advantage of this revision process is its ability to explain why truth seems in many cases almost redundant, in others substantial, and yet in others paradoxical. Yaub offers a comprehensive defense of the revision theory of truth by developing consistent and adequate formal semantics for languages in which all sorts of problematic sentences can be constructed. Yaqub concludes by introducing a logic of truth that further demonstrates the adequacy of the revision theory. (shrink)

The book is published in the International Library of Philosophy and Scientific Method. It proceeds under the assumption that the Tractatus and the later works of Wittgenstein are mutually illuminating. The general program is to present the Tractarian picture theory, to explain why it was abandoned and a new theory of language adopted, and to explicate the new theory of use. Conceptually the book is arranged around the problem of intentionality. Bogen believes that Wittgenstein’s chief (...) concern was with the problem of false belief. (shrink)

Tim Maudlin’s Truth and Paradox offers a theory of truth that arises from a foundationalist picture of language. The picture is attractive, and Maudlin builds on it courageously. From the formal point of view, the theory of truth that emerges is, as Maudlin observes, nothing other than the least-fixed-point theory of Saul Kripke. From the philosophical point of view, however, the differences between Maudlin’s and Kripke’s theories are large. It is these differences that lead (...) Maudlin to claim advantages that Kripke did not claim for his own theory. Maudlin says that his theory demands no object-language/metalanguage distinction, that he has “developed a theory of truth for a language that can serve as its own metalanguage.” He promises early on that his theory will be “more adequate to our actual practice of reasoning about truth [than revision and other fixed-point theories].” And he claims that the language he has constructed is expressively complete. (shrink)

The book is published in the International Library of Philosophy and Scientific Method. It proceeds under the assumption that the Tractatus and the later works of Wittgenstein are mutually illuminating. The general program is to present the Tractarian picture theory, to explain why it was abandoned and a new theory of language adopted, and to explicate the new theory of use. Conceptually the book is arranged around the problem of intentionality. Bogen believes that Wittgenstein’s chief (...) concern was with the problem of false belief. (shrink)

Most biologists and some cognitive scientists have independently reached the conclusion that there is no such thing as learning in the traditional “instructive‘ sense. This is, admittedly, a somewhat extreme thesis, but I defend it herein the light of data and theories jointly extracted from biology, especially from evolutionary theory and immunology, and from modern generative grammar. I also point out that the general demise of learning is uncontroversial in the biological sciences, while a similar consensus has not yet (...) been reached in psychology and in linguistics at large. Since many arguments presently offered in defense of learning and in defense of “general intelligence‘ are often based on a distorted picture of human biological evolution, I devote some sections of this paper to a critique of “adaptationism,‘ providing also a sketch of a better evolutionary theory. Moreover, since certain standard arguments presented today as “knock-down‘ in psychology, in linguistics and in artificial intelligence are a perfect replica of those once voiced by biologists in favor of instruction and against selection, I capitalize on these errors of the past to draw some lessons for the present and for the future. (shrink)

“The longer you work, the more the mystery deepens of what appearance is, or how what is called appearance can be made in another medium."—Francis Bacon, painter This, in a nutshell, is the central problem in the theory of art. It has fascinated philosophers from Plato to Wittgenstein. And it fascinates artists and art historians, who have always drawn extensively on philosophical ideas about language and representation, and on ideas about vision and the visible world that have deep (...) philosophical roots. John Hyman’s _The Objective Eye_ is a radical treatment of this problem, deeply informed by the history of philosophy and science, but entirely fresh. The questions tackled here are fundamental ones: Is our experience of color an illusion? How does the metaphysical status of colors differ from that of shapes? What is the difference between a picture and a written text? Why are some pictures said to be more realistic than others? Is it because they are especially truthful or, on the contrary, because they deceive the eye? _The Objective Eye_ explores the fundamental concepts we use constantly in our most innocent thoughts and conversations about art, as well as in the most sophisticated art theory. The book progresses from pure philosophy to applied philosophy and ranges from the metaphysics of color to Renaissance perspective, from anatomy in ancient Greece to impressionism in nineteenth-century France. Philosophers, art historians, and students of the arts will find _The Objective Eye_ challenging and absorbing. (shrink)