The delicate point in the formalistic position is to explain how the non-intuitionistic classical mathematics is significant, after having initially agreed with the intuitionists that its theorems lack a real meaning in terms of which they are true (S. C. Kleene, 1952).

The concept of a linguistic framework and the distinction between internal and external questions are the central ideas of Rudolf Carnap's "Empiricism, Semantics, and Ontology." It is not uncommon to encounter the suggestion that reflection on the theoretical and experimental investigations which led to the acceptance of the atomic hypothesis undermines Carnap's distinction between these two types of question and the utility of his notion of a linguistic framework. I believe this is a mistake. There is a natural development of (...) the distinction and the notion of framework choice with which it is paired that is perfectly capable of accommodating this case. I show this by bringing out a subtlety that arises in the extension of the con ceptual apparatus of ESO to the realism/instrumentalism controversy. When this subtlety is taken into account, the question contested by the nineteenth- and early twentieth-century opponents and proponents of the atomic hypothesis, and successfully addressed by Einstein and Perrin, is readily seen to be internal. Moreover, this formulation of the distinction and the controversy are both independent of Carnap's views on cognitive significance and factual content. I conclude with a presentation and discussion of two formulations of the realism/instrumentalism controversy that are based on Carnap's explication of the factual content of a theory in terms of the notion of its Ramsey sentence. (shrink)

Though John Dewey coined the term ‘instrumentalism’ to describe an extremely broad pragmatist attitude towards ideas or concepts in general, the distinctive application of that label within the philosophy of science is to positions that regard scientific theories not as literal and/or accurate descriptions of the natural world, but instead as mere tools or ‘instruments’ for making empirical predictions and achieving other practical ends. This general instrumentalist thesis has, however, historically been associated with a wide variety of motivations, arguments, (...) and further commitments, most centrally concerning the semantic and/or epistemic status of theoretical discourse (see below). Unifying all these positions is the insistence that one can and should make full pragmatic use of scientific theories either without believing the claims they seem to make about nature (or some parts thereof) or without regarding them as actually making such claims in the first place. This entry will leave aside the question of whether the term ‘instrumentalism’ is properly restricted to only some subset of such views, seeking instead to illustrate the historical and conceptual relations they bear to one another and to related positions in the philosophy of science. (shrink)

There is a salient contrast in how theoretical representations are regarded. Some are regarded as revealing the nature of what they represent, as in familiar cases of theoretical identification in physical chemistry where water is represented as hydrogen hydroxide and gold is represented as the element with atomic number 79. Other theoretical representations are regarded as serving other explanatory aims without being taken individually to reveal the nature of what they represent, as in the representation of gold as a standard (...) for pre-20th century monetary systems in economics or the representation of the meaning of an English sentence as a function from possible worlds to truth values in truth-conditional semantics. Call the first attitude towards a theoretical representation *realist* and the second attitude *instrumentalist*. Philosophical explanation purports to reveal the nature of whatever falls within its purview, so it would appear that a realist attitude towards its representations is a natural default. I offer reasons for skepticism about such default realism that emerge from attending to several case studies of philosophical explanation and drawing a general metaphilosophical moral from the foregoing discussion. (shrink)

In this thesis, Semantics, Meta-Semantics, and Ontology, I provide a critique of the method of truth in metaphysics. Davidson has suggested that we can determine the metaphysical nature and structure of reality through semantic investigations. By contrast, I argue that it is not semantics, but meta-semantics, which reveals the metaphysically necessary and sufficient truth conditions of our claims. As a consequence I reject the Quinean criterion of ontological commitment. In Part I, chapter 1, I argue that the metaphysically primary (...) truth bearers are not propositions, but rather concrete representations, either beliefs or sentences. I show, in chapter 2, that we can give sense to a truth predicate applying to sentences, given a truth operator and quantification into sentence position. I argue that this strategy does not commit us to the existence of propositions serving as truth bearers. In Part II I argue that although we must assign semantic values to sentences and/or predicates, the meaningfulness of these expressions is not thereby explained. In chapter 3 I articulate Davidson’s problem of predication and his solution, but argue that he was wrong to attribute this solution to Tarski. In chapter 4 I examine the semantics of modal languages; I conclude that although they require semantic values for predicates and/or sentences we should be instrumentalists about these theories. In Part III I consider the relationship between truth and existence. In chapter 5, I defend Pluralism about truth: in some domains of discourse, I claim, semantic reference plays a merely instrumental role in explaining truth. In chapter 6, I show that Hume’s Principle, which is committed by the Quinean criterion to the existence of numbers, can be true even though numbers do not exist. In doing so, I appeal to meta-semantic and diachronic considerations. In the conclusion I compare my views on ontology and commitment to Jody Azzouni’s; and in the appendix I suggest how one might pursue diachronic linguistics. (shrink)

Theoretical representations in discussions surrounding the semantic significance of words and their analogs in thought should not be viewed under a realist interpretation as individually revealing what the represented items really are. Instead, they should be viewed under an instrumentalist interpretation as having other roles to play within their respective explanatory contexts. I consider some case studies for this broad methodological claim: theoretical representations of the semantic significance of words within semantics, theoretical representations of what determines the (...) class='Hi'>semantic significance of words within metasemantics – both under the auspices of the so-called new theory of reference – and theoretical representations of cognitive attitudes within the Representational Theory of Mind. (shrink)

This book focuses on how we should treat philosophy’s theoretical representations. It argues in favor of an instrumentalist attitude towards pivotal cases of theoretical representation in philosophy that are commonly regarded under a realist attitude. -/- Philosophy is awash with theoretical representations, which raises the question of how we should regard them. This book argues that representations in philosophy should not be regarded under a realist attitude by default as individually disclosing the nature of what they represent. Ori Simchen introduces (...) the reader to the general theme of representations in philosophy and our attitudes towards them via case studies: numbers, modality, and belief. He offers a framework for deciding when a realist attitude towards a theoretical representation is warranted and concludes that the representations deployed in the case studies fail the proposed test. The next part of the book illustrates the attractiveness of attitudinal instrumentalism towards representations in semantics, in the philosophy of mind, and within the problematics of rule-following. -/- Philosophical Representation will appeal to researchers and advanced students working in philosophy of language, philosophy of mind, metaphysics, philosophical logic, and philosophical methodology. (shrink)

In this article, I argue that in typical cases of singular thought, a thinker stands in an evidential relation to the object of thought suitable for providing knowledge of the object's existence. Furthermore, a thinker may generate representations that purport to refer to particular objects in response to appropriate, though defeasible, evidence of the existence of such an object. I motivate these constraints by considering a number of examples introduced by Robin Jeshion in support of a view she calls ‘cognitivism’ (...) (Jeshion, 2010b). Although I agree with Jeshion that acquaintance is not required for all cases of singular thought, I argue that her account doesn't go far enough in rejecting semantic instrumentalism, the view that we can generate singular thoughts arbitrarily, by manipulating the mechanisms of direct reference. (shrink)

The aim of this paper is twofold: (1) to assess whether the construct of neural representations plays an explanatory role under the variational free-energy principle and its corollary process theory, active inference; and (2) if so, to assess which philosophical stance - in relation to the ontological and epistemological status of representations - is most appropriate. We focus on non-realist (deflationary and fictionalist-instrumentalist) approaches. We consider a deflationary account of mental representation, according to which the explanatorily relevant contents of neural (...) representations are mathematical, rather than cognitive, and a fictionalist or instrumentalist account, according to which representations are scientifically useful fictions that serve explanatory (and other) aims. After reviewing the free-energy principle and active inference, we argue that the model of adaptive phenotypes under the free-energy principle can be used to furnish a formal semantics, enabling us to assign semantic content to specific phenotypic states (the internal states of a Markovian system that exists far from equilibrium). We propose a modified fictionalist account: an organism-centered fictionalism or instrumentalism. We argue that, under the free-energy principle, pursuing even a deflationary account of the content of neural representations licenses the appeal to the kind of semantic content involved in the aboutness or intentionality of cognitive systems; our position is thus coherent with, but rests on distinct assumptions from, the realist position. We argue that the free-energy principle thereby explains the aboutness or intentionality in living systems and hence their capacity to parse their sensory stream using an ontology or set of semantic factors. (shrink)

First, I show that the semantic thesis of scientific realism may be relaxed significantly—to allow that some scientific discourse is not truth-valued—without making any concessions concerning the epistemic or methodological theses that lie at realism’s core. Second, I illustrate how relaxing the semantic thesis allows realists to avoid positing abstract entities and to fend off objections to the “no miracles” argument from positions such as cognitive instrumentalism. Third, I argue that the semantic thesis of scientific realism (...) should be relaxed because it is possible for scientific statements to be partially true, and hence approximately true, without being false. (shrink)

In this paper I address the question of the dynamics of empirical progress, both in theory evaluation and in theory improvement. I meet the challenge laid down by Theo Kuipers in Kuipers (1999), namely to operationalize the task of "instrumentalist abduction," that is, theory revision aiming at empirical progress. I offer a reformulation of Kuipers' account of empirical progress in the framework of (extended) semantic tableaux and show that this is indeed an appealing method by which to account for (...) some specific kind of empirical progress, that of lacunae. (shrink)

This paper discusses the difference between the factual and the legal, both as to terms and as to statements, on the analogy of the methodologists' distinction of the observational and the theoretical. No absolute distinction exists, and pure `brute facts' do not exist in law because of the socialisation of physical world and juridification of the social world.; also, the effect of evidentiary constraints. Law/fact distinction depends on `applicability rules'. The problem of `mixed terms' is partly a matter of judicial (...) pragmatics, partly to do with the character of applicability rules, and their extensiveness. Semantic realism versus semantic instrumentalism in respect of legal terms -- the latter preferred. Tendency to abstract terms in advanced legal orders. (shrink)

This book provides an interdisciplinary approach to one of the most fascinating and important open questions in science: What is quantum mechanics really talking about? In the last decades quantum mechanics has given rise to a new quantum technological era, a revolution taking place today especially within the field of quantum information processing; which goes from quantum teleportation and cryptography to quantum computation. Quantum theory is probably our best confirmed physical theory. However, in spite of its great empirical effectiveness it (...) stands today still without a universally accepted physical representation that allows us to understand its relation to the world and reality. The novelty of the book comes from the multiple perspectives put forward by top researchers in quantum mechanics, from Europe as well as North and South America, discussing the meaning and structure of the theory of quanta. The book comprises in a balanced manner physical, philosophical, logical and mathematical approaches to quantum mechanics and quantum information. Going from quantum superpositions and entanglement to dynamics and the problem of identity; from quantum logic, computation and quasi-set theory to the category approach and teleportation; from realism and empiricism to operationalism and instrumentalism; the book considers from different angles some of the most intriguing questions in the field. From Buenos Aires to Brussels and Cagliari, from Florence to Florianópolis, the interaction between different groups is reflected in the many different articles. This book is interesting not only to the specialists but also to the general public attempting to get a grasp on some of the most fundamental questions of present quantum physics. (shrink)

In a series of papers, Robin Jeshion has forcefully criticized both Donnellan's and Evans’ claims on the contingent a priori, and she has developed an “acquaintanceless” account of singular thoughts as an alternative view. Jeshion claims that one can fully grasp a singular thought expressed by a sentence including a proper name, even if its reference has been descriptively fixed and one’s access to the referent is “mediated” by that description. But she still wants to reject “semantic instrumentalism”, (...) the view that “there are no substantive conditions of any sort on having singular thought. We can freely generate singular thoughts at will by manipulating the apparatus of direct reference.” Her account of singular thoughts is a psychological one, rejecting any epistemic requirement. Having singular thoughts is for her a matter of deploying “mental files” or “dossiers” that play a significant role in the cognitive life of the individual. This paper elaborates on an alternative descriptivist-friendly view, which has important points of contact with Jeshion’s. It differs, particularly in that it is an epistemic view; it is only a broadly understood acquaintance view, as it will transpire, but this does not make it a mere terminological variation on Jeshion’s acquaintanceless one. To argue for it, the paper discusses some relevant aspects of the semantics of fictional discourse. (shrink)

In a series of recent articles, Robin Jeshion has developed a theory of singular thought which she calls ‘cognitivism’. According to Jeshion, cognitivism offers a middle path between acquaintance theories—which she takes to impose too strong a requirement on singular thought, and semantic instrumentalism—which she takes to impose too weak a requirement. In this article, I raise a series of concerns about Jeshion's theory, and suggest that the relevant data can be accommodated by a version of acquaintance theory (...) that distinguishes unsuccessful thoughts of singular form from successful singular thoughts, and in addition allows for ‘trace-based’ acquaintance. (shrink)

In this paper I challenge the widespread assumption that the conditions for singular reference are more or less the same as the conditions for singular thought. I claim that we refer singularly to things without thinking singularly about them more often than it is usually believed. I first argue that we should take the idea that singular thought is non-descriptive thought very seriously. If we do that, it seems that we cannot be so liberal about what counts as acquaintance; only (...) perception will do. I also briefly discuss and reject semantic instrumentalism. Finally, I argue that while singular reference is cheap, singular thought comes only at a price. (shrink)

This essay uses a mental files theory of singular thought—a theory saying that singular thought about and reference to a particular object requires possession of a mental store of information taken to be about that object—to explain how we could have such thoughts about abstract mathematical objects. After showing why we should want an explanation of this I argue that none of three main contemporary mental files theories of singular thought—acquaintance theory, semantic instrumentalism, and semantic cognitivism—can give (...) it. I argue for two claims intended to advance our understanding of singular thought about mathematical abstracta. First, that the conditions for possession of a file for an abstract mathematical object are the same as the conditions for possessing a file for an object perceived in the past—namely, that the agent retains information about the object. Thus insofar as we are able to have memory-based files for objects perceived in the past, we ought to be able to have files for abstract mathematical objects too. Second, at least one recently articulated condition on a file’s being a device for singular thought—that it be capable of surviving a certain kind of change in the information it contains—can be satisfied by files for abstract mathematical objects. (shrink)

This thesis argues that we should consider extended modal realism as a new player in the debate about non-existence. The primary aim is to show that extended modal realism is a viable theory when it comes to solving problems of non-existence. At times I will argue that extended modal realism has advantages over Lewisian modal realism when it comes to examining the problems of non-existence, not only in the case of problems relating to thought but also problems concerning truth as (...) well. However, I do not intend for the proposed advantages of extended modal realism to be presented as knockdown arguments against other strategies. -/- Not only do I argue that extended modal realism is viable when it comes to solving these problems, but I also make adjustments and additions to the theory that supports the conclusion of this thesis, and I argue that these are improvements to the modal realist theory. I include arguments for a new theory of existence that removes the need for the extended modal realist to rely on set-theoretic notations to understand existence, which I consider problematic. I argue for the revival of the Lewis-Rosen proposal for truth-making and a semantic instrumentalist theory of thought, both of which naturally accompany extended modal realism. Throughout this thesis, I will comment on the proposals and strategies of other authors, and some of these comments will be critical. At this very early stage, I want to clarify that this thesis's success does not rest on showing that all other competitor theories fail. I only include critical comments to situate extended modal realism within the landscape of viable positions that are available for one to occupy. (shrink)

"Semantic Aspects of Instrumentalism in the Philosophy of Science".

I am going to argue that linking Hume’s name with instrumentalism is as inappropriate as linking Aristotle’s: that, as a matter of textual point, the Hume of the Treatise is not an instrumentalist at all, and that the view of practical reasoning that he does have is incompatible with, and far more minimal than, instrumentalism. Then I will consider Hume’s reasons for his view, and argue that they make sense when they are seen against the background of his (...) semantic theory. And finally, I will try to say why it is that Hume has nonetheless been read as he has. (shrink)

The thesis that in order to genuinely think about a particular object one must be (in some sense) acquainted with that object has been thoroughly explored since it was put forward by Bertrand Russell. Recently, the thesis has come in for mounting criticism. The aim of this paper is to point out that neither the exploration nor the criticism have been sensitive to the fact that the thesis can be interpreted in two different ways, yielding two different principles of acquaintance. (...) One principle uses the notion of content in distinguishing genuine thinking-about things from a merely derivative kind of thinking-about things. The other principle is quiet about content, focusing instead on a distinction between satisfactional and non-satisfactional means of bringing things into thought. Most work has focused on the first, content-based principle of acquaintance. But criticisms of this principle do not apply straightforwardly to the non-content-based principle. I shall argue that the latter principle merits independent assessment as part of the broader effort to account for genuine thinking about particular objects. In the final section of the paper, I will sketch a roadmap for this assessment. (shrink)

What is intentionality? Intentionality is a distinguishing characteristic of states of mind : that they are about things outside themselves. About this book: William Lyons explores various ways in which philosophers have tried to explain intentionality, and then suggests a new way. Part I of the book gives a critical account of the five most comprehensive and prominent current approaches to intentionality. These approaches can be summarised as the instrumentalist approach, derived from Carnap and Quine and culminating in the work (...) of Daniel Dennett; the linguistic approach, derived from the work of Chomsky and exhibited most fully in the work of Jerry Fodor; the biological approach, developed by Ruth Garrett Millikan, Colin McGinn, and others; the information-processing approach which has been given a definitive form in the work of Fred Dretske; and the functional role approach of Brian Loar. In Part II, Professor Lyons sets out a multi-level, developmental approach to intentionality. Drawing upon work in neurophysiology and psychology, the author argues that intentionality is to be found, in different forms, at the levels of brain functioning, prelinguistic consciousness, language, and at the holistic level of `whole person performance' which is demarcated by our ordinary everyday talk about beliefs, desires, hopes, intentions, and the other `propositional attitudes'. Written in a direct, clear, and lively style, the extended survey of contemporary debate in Part I will be invaluable to the student of philosophy of mind or cognitive science as well as to the scholars and graduate students who will find an original new theory to contend with in Part II. (shrink)

Boskovic treated unobservables in two different ways. During his earlier period (1741-48) the difference between observables and unobservables was a significant element of his specific semantic instrumentalism. The sentences of unobservables (such as absolute space, time and motions) were treated only as convenient tools conceived to provide for the empirical success of a theory. Later, especially in his Theory of Natural Philosophy (1763), Boskovic relativized this distinction by positing absolute properties (continuity and impenetrability), which are common to both (...) observables and unobservables. As a scientific realist he was committed to his original unobservable entities, i.e. “points of matter”. Due to the intrinsic paradox contained in the concept of these points, his realist position was led to the absurd, which demands an anti-realist interpretation of Boskovic's theory. (shrink)

Carl Menger’s Principles of Economics published in 1871 is usually regarded as the founding document of the Austrian School of economics. Many of the School’s prominent representatives, including Friedrich Wieser, Eugen Böhm-Bawerk, Ludwig Mises, Hans Mayer, Friedrich August Hayek, Fritz Machlup, Oskar Morgenstern, and Gottfried Haberler, as well as Israel Kirzner, Ludwig Lachmann, Murray Rothbard, and Don Lavoie, advanced and modified Menger’s research program in sometimes conflicting ways. Yet, some characteristics of the Austrian School remain (nearly) consensual from its foundation (...) through to contemporary neo-Austrian economists. In eight sections, we will briefly discuss some of the philosophical and methodological characteristics of Austrian economics: Austrian action theory and interpretative understanding, a relatively thoroughgoing subjectivism, methodological individualism, ontological individualism, apriorism, essentialism, an often overstated rejection of formal methods, and alertness to economic semantics. (shrink)

Several lines of argument support the notion that the legacy of positivism (if cast in terms of the realist/instrumentalist debate) is more realist than not. Work by Joia Lewis and Alberto Coffa on both Schlick and Carnap is cited, and contemporary work from Van Fraassen and Boyd briefly alluded to. Note is made of the differences within contemporary realist theory, and it is included that Carnap's essay "Empiricism, Semantics and Ontology" is crucial for resolution of the debate. In closing it (...) is noted that the spirit of much of the original positivist work reinforced the contention than those who work within the framework of science do in fact accept the reality of key scientific entities. (shrink)

Abstract At the time of The Logical Syntax of Language (Syntax), Quine was, in his own words, a disciple of Carnap’s who read this work page by page as it issued from Ina Carnap’s typewriter. The present paper will show that there were serious problems with how Syntax dealt with ontological claims. These problems were especially pronounced when Carnap attempted to deal with higher order quantification. Carnap, at the time, viewed all talk of reference as being part of the misleading (...) material mode of speech, and as such dismissed, rather than addressed, ontological problems. Central to the analysis in the present paper is the concept of an explication, which was seen by both Carnap and Quine as being of great philosophical importance. It will be shown that the concept of explication played a significant role in how each formulated their mature position on ontology. Both these final positions on ontology can also be seen as a evolving in reaction to Carnap’s flawed handling of ontological matters at the time of Syntax. Carnap, influenced by Tarski’s work on semantics, comes to believe that the concept of reference can be given an acceptable explication, and that by doing so we can see reference to abstract objects as unobjectionable. As a result, Carnap develops a position very different from the one presented in Syntax. Quine strongly rejected the instrumentalism of Syntax, and sought to give an explication of ontological questions that was language independent. This paper closes with a discussion of each’s understanding of the other’s position. (shrink)

[Under contract with CUP, in preparation] What is a mind? Is it possible for a computer or other machine to have a mind? And how would we know? Mental fictionalism offers a new approach to these timely questions. Its central idea is that mental states (thoughts, beliefs, desires) are useful fictions. When we talk about mental states, we should be seen as merely speaking “as if” humans (and perhaps other creatures or even artifacts) had such states, in order to make (...) sense of their behavior. -/- This book is unique in presenting and defending three versions of mental fictionalism in a single volume (prefix-semantical mental fictionalism, pretense mental fictionalism, and affective storyism). The authors are three of the world’s most prominent proponents (respectively) of each variety: T. Parent (Nazarbayev University), Adam Toon (University of Exeter), and Tamás Demeter (Corvinus University of Budapest). The book essentially pits these different varieties of mental fictionalism against each other, allowing the reader to size them up. In the process, fresh perspectives are offered on foundational matters in the philosophy of mind, such as the nature of mental states and folk psychology, as well as hot topics such as embodied cognition, animal cognition, consciousness, and AI. -/- UPDATE: The chapter on prefix-semantical mental fictionalism is available upon request; write to nontology "at" gmail. (shrink)

Carl Menger’s Principles of Economics, published in 1871, is usually regarded as the founding document of the Austrian School of economics. Many of the School’s prominent representatives, including Friedrich Wieser, Eugen Böhm-Bawerk, Ludwig Mises, Hans Mayer, Friedrich August Hayek, Fritz Machlup, Oskar Morgenstern, and Gottfried Haberler, as well as Israel Kirzner, Ludwig Lachmann, Murray Rothbard, Don Lavoie, and Peter Boettke, advanced and modified Menger’s research program in sometimes conflicting ways. Yet, some characteristics of the Austrian School remain (nearly) consensual from (...) its foundation through to contemporary neo-Austrian economists. In eight sections, we will briefly discuss some of the philosophical and methodological characteristics of Austrian economics: Austrian action theory and interpretative understanding, a relatively thoroughgoing subjectivism, methodological individualism, ontological individualism, apriorism, essentialism, an often overstated rejection of formal methods, and alertness to economic semantics. (shrink)

The book has two parts: one metaphysical, the other epistemological. The metaphysical part is largely concerned with realism issues. It starts with realism about universals, dismissing Plato's notorious ‘one over many’ problem. Several chapters argue for a fairly uncompromisingly realist view of the external physical world of commonsense and science. Both the nonfactualism of moral noncognitivism and positivistic instrumentalism, and deflationism about truth, are found to rest on antirealisms about their subject matters that are hard to characterize. A case (...) is presented for moral realism. Various biological realisms are considered. Finally, an argument is presented for an unfashionable biological essentialism. The epistemological part of the book argues against the a priori and for a Quinean naturalism. The intuitions that so dominate ‘armchair philosophy’ are empirical not a priori. There is an emphasis throughout the book on distinguishing metaphysical issues about what there is and what it's like from semantic issues about meaning, truth, and reference. Another central theme, captured in the title, is that we should ‘put metaphysics first’. We should approach epistemology and semantics from a metaphysical perspective rather than vice versa. The epistemological turn in modern philosophy and the linguistic turn in contemporary philosophy were something of disasters. (shrink)

In place of earlier instrumentalist and phenomenalist interpretations of science both Quine and Sellars have developed highly influential realist positions centering around the doctrine that accepting a theory as explanatory and irreducible rationally entails accepting the entities posited by the theory. A growing reaction against this realism is partially based on perceived inadequacies in the doctrines of Quine and Sellars, but even more on reconstructions of scientific explanations which do not involve such ontic commitments. Three types of anti-realistic positions are (...) considered and criticized. Hesse's neo-Duhemian position couples a statistical theory of inference to a downgrading of purely theoretical statements. Sneed uses the method of axiomatrization through set-theoretic predicates to supply a reconstruction of Kuhn's account of scientific development. Here Ramsey-reduction sentences serve to eliminate purely theoretical terms. The longest section deals with van Fraassen's semantic model based on a state-space representation of scientific theories and the use of this model in interpreting quantum mechanics. It is argued that the model is valuable, but that the anti-realist interpretation accorded it is not justified and entails serious inconsistencies. (shrink)

In everyday usage, ‘realism’ is often used as a name for a practically or epistemically low-ambition attitude, while ‘idealism’ is often taken to denote a highambition—if not utopian—attitude. In philosophcal usage, mostly, it is the other way around: those who are called realists tend to claim more than their opponents—they are the philosophical optimists. Within philosophy itself, ‘realism’ adopts a variety of interrelated and contested meanings. It is used as the name for doctrines about issues such as perceptual access to (...) reality, the existence of universals, the goals and achievements of science, the nature of truth, the objectivity of morality, and many other things. Given this variety, no single shorthand definition of the term ‘realism’ can be provided. One manifestation of this variety is that the opponents of realism about these issues are not called uniformly by a single label (other than the rather uninformative ‘antirealism’): the labels used include idealism, phenomenalism, instrumentalism, conventionalism, fictionalism, noncognitivism, constructivism, relativism, irrealism, and others. Sometimes such labels vary from one dispute or domain to another even when similar ideas are being expressed. Sometimes they are used to make claims that are specific to the domain at hand and distinct from other antirealist theses. In what follows a brief tour will be taken along some of the representative philosophical highways and lanes, from ontology through semantics to epistemology. Along the way, realism will be confronted with some of its various opponents and internal conflicts. The philosophical landscape in the neighborhood of realism is nowadays much broader than it used to be: in a typical older encyclopedia, ‘realism’ was taken to name doctrines about universals or about perception, or both, to the exclusion of much of its present coverage, and many of the current opponents were missing from view altogether. (shrink)

SummaryMethodological questions are discussed from a point of view which the author calls open transcendentalism. In the first paragraphs the importance of normative practices is stressed and the application of the method to philosophical problems concerning ontology, analyticity and necessity is illustrated. Against Quine's holism a truely pluralistic view is defended according to which various logical or linguistic systems may be used with regard to the needs in different human activities.In the second part, arguments in favor of a instrumentalistic conception (...) of logic are advanced. Several objections against possible‐worlds‐semantics and proposals for an adequate treatment of counterfactuals suggest that contexts must be taken into account and that a distinction must be made between a descriptive and a fictional use of languages. Accordingly, fictitious entities have to be introduced in the ontology. A notion of counterpart is developped which, in contrast to D. Lewis'one, creates no difficulties with regard to identity.RésuméL'auteur traite de quelques questions de méthode d'un point de vue qu'il nomme transcen‐dantalisme ouvert. Dans les premiers paragraphes, il met en évidence l'importance de certaines activités normatives et il illustre l'application de sa méthode à des problèmes de philosophie en donnant quelques exemples tirés des domaines de l'ontologie, de la sémantique et de la métaphysique . Contre l'holisme de Quine il défend une position authentiquement pluraliste qui nous permet d'investir, selon les besoins du moment, des systèmes linguistiques ou logiques très divers.Dans les parties ultérieures, il avance des arguments en faveur d'une conception instrumentaliste de la logique. Plusieurs objections envers la sémantique des mondes possibles et un traite‐ment approprié des propositions conditionnelles suggèrent qu'il est indispensable de tenir compte du contexte tout en faisant une distinction marquée entre un usage des‐criptif et fictif de la langue. Nous sommes ainsi obligés d'accepter des entités fictives dans notre univers. Une notion de pendant est introduite qui, contrairement à celle proposée par D. Lewis, ne crée aucune difficulté quant au critere d'identityé.ZusammenfassungMethodische Fragen werden von einem Standpunkt angegangen, den der Verfasser offenen Transzendentalismus nennt. In den ersten Abschnitten wird die Wichtigkeit normativer Prakti‐ken hervorgehoben, um dann die Anwendung der Methode an philosophischen Fragen, die dieOntologie, die Analytizität und den Begriff der Notwendigkeit betreffen, zu illustrieren. Gegen Quines Holismus wird eine echt pluralistische Auffassung vertreten, wonach je nach Bedarf sehr verschiedenartige logische oder linguistische Systeme für das Fortkommen auf alien Gebieten menschlicher Tätigkeit eingesetzt werden können.Im zweiten Teil werden Argumente zugunsten einer instrumentalistischen Konzeption der Logik angeführt. Einwände gegen die Mögliche‐Welten‐Semantik und Vorschläge für eine adäquate Behandlung von irrealen Konditionalsätzen legen die beiden zentralen Anliegen der Berücksichtigung von Kontexten sowie der Unterscheidung von deskriptiven und fiktionalen Sprachverwendungen nahe, wobei entsprechend in der Ontologie die Annahme von fiktiven Entitäten erforderlich wird. Es wird ein Begriff des Gegenstücks oder Duplikats eingeführt, der im Gegensatz zu D. Lewis'Aufsatz bezüglich des Identitätskriteriums keine Schwierigkeiten bereitet. (shrink)

_Rethinking Pragmatism_ explores the work of the American Pragmatists, particularly James and Dewey, challenging entrenched views of their positions on truth, meaning, instrumentalism, realism, pluralism and religious beliefs. It clarifies pragmatic ideas and arguments spelling out the significant implications they have for present-day philosophical controversies. Explores the work of the American Pragmatists, especially James and Dewey, on the issues of truth, reference, meaning, instrumentalism, essences, realism, pluralism and religious beliefs. The only available publication to provide a detailed commentary (...) on James's book, _Pragmatism_, while exploring the implications of the American Pragmatists' ideas and arguments for contemporary philosophical issues Challenges standard readings of the American Pragmatists' positions in a way that illuminates and questions the assumptions underlying current discussions of these topics. Coherently arranged by structuring the book around the themes discussed in each chapter of James's original work. Provides a new analysis and understanding of the pragmatic theory of truth and semantics. (shrink)

In “The Toolbox of Science” (1995) together with Towfic Shomar we advocated a form of instrumentalism about scientific theories. We separately developed this view further in a number of subsequent works. Steven French, James Ladyman, Otavio Bueno and Newton Da Costa (FLBD) have since written at least eight papers and a book criticising our work. Here we defend ourselves. First we explain what we mean in denying that models derive from theory – and why their failure to do so (...) should be lamented. Second we defend our use of the London model of superconductivity as an example. Third we point out both advantages and weaknesses of FLBD’s techniques in comparison to traditional Anglophone versions of the semantic conception. Fourth we show that FLBD’s version of the semantic conception has not been applied to our case study. We conclude by raising doubts about FLBD’s overall project. (shrink)

This monograph introduces a meta-framework for conducting interdisciplinary research in the science of emotion, as well as a framework for a particular kind of theory of emotion. It can also be understood as a “cross-over” book that introduces neophytes to some of the current discourse and major challenges for an interdisciplinary approach to the science of emotion, especially from a philosophical perspective. It also engages experts from across the disciplines who are interested in conducting an interdisciplinary approach to research and (...) theorizing in the science of emotion, and introduces to them some of the contemporary debates in the philosophy of emotion. It does so by providing a taxonomy of theories of emotion which allows one to understand the contemporary interdisciplinary discourse in the science of emotion as a debate between four fundamental types of theories of emotion—realism, instrumentalism, eliminative-realism, and eliminativism—and which can be found or potentially found across the disciplines, and by arguing for foundational principles which can unify, without consilience, these four kinds of approaches as perspectives about the same object of inquiry. It also covers a wide range of concerns, including the problem of skepticism in the science of emotion, the problem of the underdetermination of a theory by the evidence, the question of the place of ordinary intuitions and ordinary language for a science of emotion, the mind-body problem, the hard problem of consciousness, the meta-hard problem of consciousness, the problem of intentionality, questions about the rationality of emotions and whether emotions can be a vehicle for knowledge, and the debate between cognitive and noncognitive theories in the philosophy of emotion. (shrink)

The major argument against Ramsey-style epistemic structural realism is the model-theoretic refinement of Newman’s objection against Russell, presented in Ketland : 409–424, 2004), where a technical result is interpreted as showing that the Ramsey-sentence approach collapses into instrumentalism. This paper addresses some questions raised by the application of model theory to the scientific realism debate. Firstly, I will suggest three different formal semantics for the positions in the debate. Then, some technicalities of Ketland’s result will be scrutinized in light (...) of comments by Zahar and Demopoulos. Finally, I will formalize Ketland’s argument by means of an intensional operator and focus on one problematic premise. The conclusion is that, with some adjustments, the Ramsey-sentence approach can represent an intermediate position between realism and instrumentalism, but the term “structuralism” does not suit it well. (shrink)

Pierre Duhem's well-known argument for the underdetermination of theory choice by evidence is often cited in current discussion of scientific realism and antirealism. I argue that the familiar account of it that participants draw on is incomplete. After studying Duhem's philosophy of scientific language, which he regards as both abstract and symbolic, I conclude that, for Duhem, underdetermination rests on the observation that instruments are ubiquitous in mathematical sciences. This ties auxiliary assumptions to the use of instruments and completes the (...) familiar account of underdetermination. Even when complete, however, this account has no obvious implications for the debates about realism, nor does it settle how Duhem's own philosophy should be interpreted. An interpretive problem arises because there is textual support for both antirealist and realist readings of his work. Accordingly, in the recent literature he has been interpreted both as a fictionalist and as a structural realist. I argue that neither of these readings will do. First, the reasoning that might motivate a fictionalist interpretation assumes a certain semantical view that Duhem would not accept. To develop his pragmatic alternative, I address his conception of theory-ladenness and his account of how scientists come to understand phenomena. Second, the realist conviction that mitigates his apparent instrumentalism---specifically, the belief that physical theory is approaching a logically unified and natural classification---does not implicate him as a structural realist. For Duhem, natural classifications are ontologically significant and preserved over conceptual revolutions because they pick out essential features of real things and order phenomena accordingly. To properly classify Duhem's philosophy, I study his realist and antirealist claims and point out that they are different. In his view, scientific reasoning leads straight to antirealism but feelings, hunches, and intuitions motivate, without justifying, a kind of realism. I argue that Duhem's approach is characteristic of motivational realism. (shrink)

In this doctoral thesis, I will argue that in his De motu (1721, ‘On motion’), Bishop George Berkeley (c.1684–1753) develops a pragmatist theory of causation regarding mechanical theories outlined previously with Newtonianism. I place chief emphasis on the importance of logic and mathematics in Berkeley’s scientific approach, on which the other levels of semantics, epistemology, and mechanics build up. On my rendering, Berkeley’s pragmatic method to conceive or mathematically imagine causation makes sense in terms of mechanical causes or ‘mathematical hypotheses’. (...) For the mechanist maintains the usefulness and truthfulness of causation by the following definition. Definition. A pragmatist theory of causation is one which holds that: 1 Causal terms are indispensable in scientific deliberation for their usefulness; they cannot be eliminated [contra reductionism]. 2 What a cause is is defined by one’s temporal deliberative practices, independent of a temporal structure that theories hold [contra structuralism]. 3 Causal laws (theories formulated in causal terms) are genuinely true, not fictitious, when one confirms and deduces them [contra instrumentalism]. By justifying this definition, I will object to three rival readings—reductionism, structuralism, and instrumentalism—to my reading of Berkeley as a pragmatist about causation. In particular, my pragmatist reading criticises the most popular instrumentalist reading because, according to the latter, talk of causal terms like forces can be false or merely fictitious inasmuch as one can hold the utility of theories in mechanical practices. The instrumentalist reading is then compatible with mathematical formalism, according to which it is not truth or meaning that counts as formal manipulation or game of meaningless symbols, thereby eschewing a platonist attitude towards mathematical objects. However, I rebut the formalistic instrumentalism from Berkeley’s logical and realist standpoint, maintaining the irreducibility of occult qualities that mathematical objects have in their formulation from hypotheses to propositions. Light shall be shed on the tenet I propose that law-propositions formulated in hypothetical, causal terms must be true, neither false nor fictitious, when we (1) frame, (2) confirm, and (3) express them to the extent of our discursive thinking (in three steps). [339 words]. (shrink)

As a class of terms and mental representations, proper names and mental names possess an important function that outstrips their semantic and psycho-semantic functions as common, rigid devices of direct reference and singular mental representations of their referents, respectively. They also function as abstract linguistic markers that signal and underscore their referents' individuality. I promote this thesis to explain why we give proper names to certain particulars, but not others; to account for the transfer of singular thought via (...) communication with proper names; and, more generally, to support a cognitivist, not acquaintance or instrumentalist, theory of singular thought. (shrink)

We list, with discussions, various principles of scientific realism, in order to exhibit their diversity and to emphasize certain serious problems of formulation. Ontological and epistemological principles are distinguished. Within the former category, some framed in semantic terms (truth, reference) serve their purpose vis-a-vis instrumentalism (Part 1). They fail, however, to distinguish the realist from a wide variety of (constructional) empiricists. Part 2 seeks purely ontological formulations, so devised that the empiricist cannot reconstruct them from within. The main (...) task here is to characterize "independence of mind". A pair of notions, "physical invariance" and "anti-determination", seem to work. They enable us to assess anew "the problem of constructing the physical out of the phenomenal" (yielding certain clarifications demanded by Goodman). Modern cosmology, especially, is seen to present insuperable obstacles to such empiricist approaches to science. The final section on epistemological principles reveals a morass better avoided in favor of an elementary claim about perception, together with a rejection of any absolute observation/theory dichotomy. Finally, a positive, realist notion of "observable-in-principle" is sketched, and it is suggested that, from the perspective of relativistic cosmology, even this defines no boundary to potential knowledge. (shrink)

The decision whether to have a realist or an anti-realist attitude towards scientific hypotheses is interpreted in this paper as a choice that scientists themselves have to face in their work as scientists, rather than as a ‘philosophical’ problem. Scientists’ choices between realism and instrumentalism (or other types of anti-realism) are interpreted in this paper with the help of two different conceptual tools: a deflationary semantics grounded in the inferentialist approach to linguistic practices developed by some authors (e.g., Sellars, (...) Brandom), and an epistemic utility function that tries to represent the cognitive preferences of scientists. The first tool is applied to two different questions traditionally related to the problem of scientific realism: the non-miracle argument, and the continuity of reference. The second one is applied to the problem of unconceived alternatives, and to the distinction between realist and instrumentalist attitudes towards scientific hypotheses. (shrink)

In this rejoinder to the critical comments elicited by my essay “Existential Hypotheses,” I propose to deal first with the challenge coming from the avowedly different philosophical outlook of Professor Churchman. My other critics, Professors Frank, Hempel, Nagel and Ramsperger, on the whole, share my basic conception of the tasks of philosophy of science and epistemology, even if they dissent in one important respect or another from the special solution I suggested. But since I discern even in Professor Nagel's remarks (...) a pragmatist or instrumentalist strain akin to the major contentions of Professor Churchman, it will be well to begin with a defense and further clarification of my underlying point of view. Only after this restatement of my platform will I undertake to defend semantic realism against the specific criticisms advanced by the last four authors. (shrink)

This chapter contains sections titled: Allergy to absolute truth Provisionality and truth Truth versus verification Truth and fixity Transparency, Tarski, and Carnap Truth and certainty Sentences as truth candidates Theoretical terms Varieties of instrumentalism Pragmatism and instrumentalism Systems, simplicity, reduction Crises in science Reduction and expansion.

Lehrer examines the conditions traditionally held to be necessary and jointly sufficient for warranting empirical knowledge claims. Chapter 1 is a summary of some of the current literature regarding knowledge claims and whether knowledge is synonymous with true justified belief. Chapters 2 and 3 respectively deal with the truth and belief conditions, with Lehrer adopting a modified version of the semantic theory. He also briefly discusses, then rejects, the correspondence theory, noting the usual problems concerning "correspondence" and "fact." He (...) also rejects the identification of a theory of truth with a theory of justification, given that justification for Lehrer is no guarantee of truth and that a justified belief may be causally independent of evidence. This is in sharp contrast with the instrumentalist definition of truth as warranted assertability. Unfortunately, there is no discussion of the pragmatic theory of truth in this book. Chapters 4-6 examine and reject the Foundation Theory, according to which there is a set of self-evident or basic statements which constitute the foundation for justifying all non-basic or inferential statements. (shrink)

This paper characterizes a form of materialism which is strongly anti?reductionist with regard to mental predicates. It argues against the functionalist views of writers such as Brian Loar on the basis that the counterfactual interdependencies of intentional states are governed by constraints of rationality embodied in semantic links which cannot be captured in non?intentional, functionalist terms. However, contrary to what is commonly supposed, such anti?reductionism requires neither instrumentalism about the mental nor opposition to a causal explanatory view of (...) intentional explanation. The paper therefore aims to show that a realist causal explanatory view of psychological states is compatible with a non?reductive materialism (a position excluded by Brian Loar in his recent book Mind and Meaning). (shrink)

In the epistemological tradition, there are two main interpretations of the semantic relation that an empirical theory may bear to the real world. According to realism, the theory-world relationship should be conceived as truth; according to instrumentalism, instead, it should be limited to empirical adequacy. Then, depending on how empirical theories are conceived, either syntactically as a class of sentences, or semantically as a class of models, the concepts of truth and empirical adequacy assume different and specific forms. (...) In this paper, we review two main conceptions of truth (one sentence-based and one model-based) and two of empirical adequacy (one sentence-based and one model-based), we point out their respective difficulties, and we give a first formulation of a new general view of the theory-world relationship, which we call Methodological Constructive Realism (MCR). We then show how the content of MCR can be further specified and expressed in a definite and precise form. The bulk of the paper shows in detail how it is possible to accomplish this goal for the special case of deterministic dynamical phenomena and their correlated deterministic models. This special version of MCR is formulated as an axiomatic extension of set theory, whose specific axioms constitute a formal ontology that provides an adequate framework for analyzing the two semantic relations of truth and empirical correctness, as well as their connections. (shrink)

Logical empiricism is commonly seen as a counter-position to scientific realism. In the present paper it is shown that there indeed existed a realist faction within the logical empiricist movement. In particular, I shall point out that at least four types of realistic arguments can be distinguished within this faction: Reichenbach’s ‘probabilistic argument,’ Feigl’s ‘pragmatic argument,’ Hempel’s ‘indispensability argument,’ and Kaila’s ‘invariantist argument.’ All these variations of arguments are intended to prevent the logical empiricist agenda from the shortcomings of radical (...) positivism, instrumentalism, and other forms of scientific antirealism. On the whole, it will be seen that logical empiricism and scientific realism are essentially compatible with each other. Especially Kaila’s invariantist approach to science (and nature) comes quite close to what nowadays is discussed under the label ‘structural realism.’ This, in turn, necessitates a fundamental reevaluation of Kaila’s role in the logical empiricist movement in particular and in twentieth-century philosophy of science in general. (shrink)

Realism as an explanatory theory of science (faded realism) is not convincing. However, neither "internal realism" nor instrumentalism are plausible. Assuming common sense realism a non-explanatory form of scientific realism (modest realism) can be defended. Modest realism has affinities with Fine's NOA. To NOA it adds a descriptive thesis about scientific progress towards truth or verisimilitude. In addition it adds a concern with purely philosophical issues which arise in reflections on the nature of science. However, there is little to (...) say about truth over and above what is conveyed by Tarski/Davidson semantics. (shrink)