Realism/Antirealism Debate: A Selection of the Most Important Arguments of the Debate. The present article intends to explore features of the realism/antirealism dispute. The intention is to offer arguments in favor of both sides for a better understanding of the debate. The article wants to use both logical arguments and sociological or psychological ones.

According to semantic antirealism, intuitionistic logic satisfies the requirement that truth should be constrained by provability in principle. Some philosophers have argued that semantic antirealism must be committed to effective provability and that the commitment leads to a stronger kind of logical revisionism exemplified by substructural logics. I shall take into account two different kinds of reply. The first is concerned with meaning per se and grasp or fixing of meaning. It rests on the idea that if we (...) have a method which may be used over some surveyable range, we have determined a way of applying the method everywhere in principle, and that this is enough as far as fixing or grasping meaning is concerned. The second concerns two radical antirealist principles disqualifying structural rules: Token Preservation and Preservation of Local Feasibility. Against criticisms, I shall argue that conceptual support may be provided for both. The main point in this debate is that there is a decisive difference between the rejection of classical logic via the curbing of the epistemic idealizations embedded in structural rules and the rejection of classical logic via the intuitionistic criticism of invalid introduction and elimination rules. It will be explained why the second rejection is stronger than the former. (shrink)

Strictly intuitionistic inferences are employed to demonstrate that three conditions—the existence of Brouwerian weak counterexamples to _Test_, the recognition condition, and the _BHK_ interpretation of the logical signs—are together inconsistent. Therefore, if the logical signs in mathematical statements governed by the recognition condition are constructive in that they satisfy the clauses of the _BHK_, then every relevant instance of the classical principle _Test_ is true intuitionistically, and the antirealistic critique of conventional logic, once thought to yield such weak counterexamples, is (...) seen, in this instance, to fail. (shrink)

In a nutshell, semantic antirealism is the doctrine that if a statement is true, then it must be possible, at least in principle, to determine that it is true. Consider the particular case of self-ascriptions of attitudes such as beliefs, desires and intentions, i.e. statements of the form "I φ [that] p", where φ ranges over propositional attitude verbs and p provides the content of whatever is φd by the self-ascriber. Should we be semantic antirealists about these when the (...) putative bearer of the attitude is the only individual who may retrieve a warrant in favour of his φing that p? We can't provide an answer to the question unless we're clear about (i) whether or not the "at least in principle" clause is too weak, and (ii) what the right construal of positive introspection should look like. 2 Thus two issues: strict finitism on the one hand and the phenomenological nature of introspective warrants on the other. I shall argue that recent views defended by Peacocke and Pryor are found wanting with respect to both. (shrink)

Debates between different kinds of scientific realists and antirealists are longstanding and show every sign of continuing. In this chapter I examine one explanation of their longevity: lurking beneath various forms of realism and antirealism are conflicting commitments which (1) sustain these positions and (2) are immune to refutation. These deeper commitments are to different epistemic stances. I consider the nature of philosophical stances generally and, more specifically, of epistemic stances in relation to the sciences. I investigate the question (...) of how stances are evaluated and adopted and elaborate on the most telling reason for their immunity, namely, a form of voluntarism regarding their adoption. (shrink)

Truth’s universal knowability entails its discovery. This threatens antirealism, which is thought to require it. Fortunately, antirealism is not committed to it. Avoiding it requires adoption (and extension) of Dag Prawitz’s position in his long-term disagreement with Michael Dummett on the notion of provability involved in intuitionism’s identification of it with truth. Antirealism (intuitionism generalized) must accommodate a notion of lost-opportunity truth (a kind of recognition-transcendent truth), and even truth consisting in the presence of unperformable verifications. Dummett’s (...) position cannot abide this, while Prawitz’s can. Antirealism’s epistemic notion of truth derives from general features of its meaning theory, not from a universal knowability principle. (shrink)

This landmark collection of essays by six renowned philosophers explores the implications of the contentious realism/antirealism debate for epistemology. The essays examine issues such as whether epistemology needs to be realist, the bearing of a realist conception of truth on epistemology, and realism and antirealism in terms of a pragmatist conception of epistemic justification. Richard Rorty's essay provides a critical commentary on the other five.

Antirealism about metaphysical explanation is relatively underexplored. This paper maps out the territory for the antirealist, explaining what it would take to be an antirealist given various different conceptions of metaphysical explanation, and of the relationship between metaphysical explanation and grounding.

Scientific Realism and Antirealism Debates about scientific realism concern the extent to which we are entitled to hope or believe that science will tell us what the world is really like. Realists tend to be optimistic; antirealists do not. To a first approximation, scientific realism is the view that well-confirmed scientific theories are approximately true; … Continue reading Scientific Realism and Antirealism →.

In this paper, I re-examine Dummett's arguments against realism and, most notably, those against truth conditional semantics. Dummett claims that a (realist) truth conditional meaning theory will invariably encounter limitations when accounting for the meanings of the statements of the so-called "disputed class", and so must be rejected in favour of a theory of meaning couched in terms of proof or verification. The first part of this paper seeks to faithfully reconstruct Dummett's position on meaning. The subsequent parts are critical (...) of this position. In particular, I attempt to expose the shortcomings of an antirealist theory of meaning on the one hand, and then show how truth conditional semantics (be they realist or not) emerge relatively unscathed from Dummett's criticism on the other. (shrink)

If you cannot lucidly doubt that you exist as a thinking thing, then nor can there be a lucid doubt about the reality of those psychological states and attributes whose possession is distinctive of thinkers, par excellence their being subject to the various kinds of doxastic and conative states involved in goal-directed thought. Thus, it seems a short step from the Cogito to at least a limited application of the categories of ordinary attitudinal psychology. Yet many leading modern philosophers—for instance, (...) Dennett, Stich, the Churchlands and, above all, Quine—have been united, notwithstanding other differences, in a tendency to skepticism about the reality of attitudinal states. (shrink)

Scientific realists have argued that the truth(likeness) of our theories provides the only explanation for the success of science. I consider alternative explanations proposed by antirealists. I endorse Leplin's contention that neither van Fraassen's Darwinist explanation nor Laudan's methodological explanation provides the sort of explanatory alternative which is called for in this debate. Fine's suggestion--that the empirical adequacy of our theories already explains their success--is more promising for antirealists. Leplin claims that this putative explanation collapses into realism on one reading (...) and into vacuity on another reading. But his analysis conflates three doctrines into two, and one of the three avoids both realism and vacuity. (shrink)

Mathematics is one of the many domains where the adoption of a form of realism has traditionally been challenged. Behaviorism and phenomenalism, opposed to realism about, respectively, mental entities and the existence of material objects, are other well‐known examples. The realism debate, as initiated by Dummett's challenge, appears to have run its course, at least on its original terms, and difficulties have been raised with respect to both antirealist and anti‐antirealist readings of Wittgenstein within that debate. Realism about meaning did (...) not remain unchallenged, however, as successor debates took its place, surrounding Robert Brandom's “inferentialism” or Price's generalized form of quasi‐realism, called “pragmatism”. Brandom also espouses “non‐representationalism” and predictably made use of Wittgenstein, with a reading akin to Kripke's of the rule‐following argument. He was criticized by McDowell largely for failing to account for Wittgenstein's quietism. (shrink)

This paper distinguishes three concepts of "race": bio-genomic cluster/race, biological race, and social race. We map out realism, antirealism, and conventionalism about each of these, in three important historical episodes: Frank Livingstone and Theodosius Dobzhansky in 1962, A.W.F. Edwards' 2003 response to Lewontin (1972), and contemporary discourse. Semantics is especially crucial to the first episode, while normativity is central to the second. Upon inspection, each episode also reveals a variety of commitments to the metaphysics of race. We conclude by (...) interrogating the relevance of these scientific discussions for political positions and a post-racial future. (shrink)

This project is an investigation into the prospects for an antirealist theory of essence. Essentialism is the claim that at least some things have some of their properties essentially. Essentialist discourse includes claims such as “Socrates is essentially human”, and “Socrates is accidentally bearded”. Historically, there are two ways of interpreting essentialist discourse. I call these positions ‘modal essentialism’ and ‘neo-Aristotelian essentialism’. According to modal essentialism, for Socrates to be essentially human is for it to be necessary that he be (...) a human if he exists, and for Socrates to accidentally have a beard is for it to be contingent that Socrates has a beard if he exists. According to neo-Aristotelian essentialism, objects have definitions in something like the way words do. For Socrates to be essentially human but accidentally bearded is for it to be part of the definition of Socrates that he is human, but not part of that definition that he is bearded. I argue that both are susceptible to antirealist interpretation. This thesis sets about showing that this is the case. In Chapters One and Two I investigate neo-conventionalist theories of modality, in the hope of using such a position to develop an antirealist modal essentialism. In Chapter Three I discuss the debate between modal and neo-Aristotelian essentialism and conclude that it is by no means settled. In Chapter Four I develop an antirealist neo-Aristotelian essentialism based on the mechanism of one of the neo-conventionalist accounts of modality. In Chapter Five I argue that this account is in a better position to give an essentialist theory of necessity than its realist counterparts. I conclude that, regardless of whether one is a modal or neo-Aristotelian essentialist, antirealist essentialism is a viable theory of essence that is worthy of consideration in contemporary debate. (shrink)

Scientific antirealists run the argument from underconsideration against scientific realism. I argue that the argument from underconsideration backfires on antirealists’ positive philosophical theories, such as the contextual theory of explanation (van Fraassen, 1980), the English model of rationality (van Fraassen, 1989), the evolutionary explanation of the success of science (Wray, 2008; 2012), and explanatory idealism (Khalifa, 2013). Antirealists strengthen the argument from underconsideration with the pessimistic induction against current scientific theories. In response, I construct a pessimistic induction against antirealists that (...) since antirealists generated problematic philosophical theories in the past, they must be generating problematic philosophical theories now. (shrink)

The expression conditional fallacy identifies a family of arguments deemed to entail odd and false consequences for notions defined in terms of counterfactuals. The antirealist notion of truth is typically defined in terms of what a rational enquirer or a community of rational enquirers would believe if they were suitably informed. This notion is deemed to entail, via the conditional fallacy, odd and false propositions, for example that there necessarily exists a rational enquirer. If these consequences do indeed follow from (...) the antirealist notion of truth, alethic antirealism should probably be rejected. In this paper we analyse the conditional fallacy from a semantic (i.e. model-theoretic) point of view. This allows us to identify with precision the philosophical commitments that ground the validity of this type of argument. We show that the conditional fallacy arguments against alethic antirealism are valid only if controversial metaphysical assumptions are accepted. We suggest that the antirealist is not committed to the conditional fallacy because she is not committed to some of these assumptions. (shrink)

This essay defends a reading of Hegel as a metametaphysical antirealist. Metametaphysical antirealism is a denial that metaphysics has as its subject matter answers to theoretical questions about the mind-independent world. Hence, on this view, metaphysical questions are not, in principle, knowledge transcendent. I hold that Hegel presents a version of metametaphysical antirealism in the Science of Logic because he pursues his project by suspending reference to all supposed objects of metaphysical theory as practiced before him. Hegel introduces (...) reference in his theory only by the self-reference of thought to itself in the Doctrine of the Concept. I motivate the relevance of Hegel’s approach to metaphysics by comparing it to Kit Fine’s (2017) concept of “naïve metaphysics.” I argue that Hegel’s theory results from a comprehensively naïve metaphysics. (shrink)

Throughout the past century, a debate has raged over the thesis of realism and its alternatives. In this volume of original essays, a group of philosophers explores the ongoing controversy.

In everyday speech we seem to refer to such things as abstract objects, moral properties, or propositional attitudes that have been the target of metaphysical and/or epistemological objections. Many philosophers, while endorsing scepticism about some of these entities, have not wished to charge ordinary speakers with fundamental error, or recommend that the discourse be revised or eliminated. To this end a number of non-revisionary antirealist strategies have been employed, including expressivism, reductionism and hermeneutic fictionalism. But each of these theories faces (...) forceful objections. In particular, we argue, proponents of these strategies face a dilemma: either concedes that their theory is revisionary, or adopt an implausible account of speaker-meaning whereby the content of certain types of utterance is opaque to their speakers. In this paper we introduce a new type of antirealist strategy, which is thoroughly non-revisionary, and leaves speaker-meaning transparent to speakers. We draw on work on pragmatics in the philosophy of language to develop a theory we call ‘pragmatic antirealism’. The pragmatic antirealist holds that while the sentences of the discourses in question have metaphysically contentious truth conditions, ordinary utterances of them are pragmatically modified in context in such a way that speakers do not incur commitment to those truth conditions. After setting out the theory, we show how it might be developed for both mathematical and ethical discourse, before responding to some likely objections. (shrink)

In an important article, Kim Sterelny and Philip Kitcher challenge the common assumption that for any biological phenomenon requiring a selectionist explanation, it is possible to identify a uniquely correct account of the relevant selection process. They argue that selection events can be modeled in any of a number of different, equally correct ways. They call their view ' Pluralism,' and explicitly connect it with various antirealist positions in the philosophy of science. I critically evaluate Sterelny and Kitcher's Pluralism along (...) with its attendant antirealist theses. In particular, I argue that there are serious problems with their pluralistic antirealism regarding units of selection. By correctly diagnosing these problems a more adequate position can be constructed. I defend such a position, which I designate Inclusive Hierarchical Monism, and show how it captures the important virtues of Sterelny and Kitcher's approach while avoiding its problems. (shrink)

I develop an account of predictive similarity that allows even Antirealists who accept a correspondence conception of truth to answer the Realist demand (recently given sophisticated reformulations by Musgrave and Leplin) to explain the success of particular scientific theories by appeal to some intrinsic feature of those theories (notwithstanding the failure of past efforts by van Fraassen, Fine, and Laudan). I conclude by arguing that we have no reason to find truth a better (i.e., more plausible) explanation of a theory's (...) success than predictive similarity, even of its success in making novel predictions. (shrink)

Many realists on kinds deem it highly controversial to consider artefact kinds real kinds on a par with natural ones. There is a built-in tendency in realism to conceive of artefact kinds as merely a conventional classification used for practical purposes. One can individuate three main different approaches characterizing real kinds and accordingly three different types of arguments against viewing artefact kinds as real kinds: the metaphysical, the epistemological and the semantic arguments. The aim of this contribution is to undermine (...) the thesis that it is possible to trace a clear distinction between artefacts and natural kinds in each of these approaches. As a consequence there are no metaphysical, epistemological and semantic bases for claiming that artefact kinds as opposed to natural ones are not real kinds. (shrink)

Nussbaum misconstrues the difference between Plato and Aristotle over what is real for a debate over a conception of truth. She seems to mistake Aristotle's arguments against Plato' version of realism as an argument against realism per se, though the texts do not permit such a reading. She claims Aristotle is convinced that realism involves a fatal “failure of reference,” yet she produces not a single text where Aristotle is even remotely concerned about such a failure of reference given the (...) commitments of realism. And nowhere is the crucial question of the relationship between Aristotle's antirealism and his method of appearances explicitly addressed or resolved.Nussbaum offers us a fashionable Aristotle. I have argued that, far from being attractive and obviously right on a deep and recent metaphysuical debate, Nussbaum's Aristotle is confused and inconsistent and thus that it is a good thing the texts do not support such a characterization. (shrink)

This landmark collection of essays by six renowned philosophers explores the implications of the contentious realism/antirealism debate for epistemology. The essays examine issues such as whether epistemology needs to be realist, the bearing of a realist conception of truth on epistemology, and realism and antirealism in terms of a pragmatist conception of epistemic justification. Richard Rorty's essay provides a critical commentary on the other five.

The standard arguments for antirealism are densely abstract, often enigmatic, and thus unpersuasive. The ubiquity and irreducibility of what linguists call generic statements provides a clear argument from a specific and readily understandable case. We think and talk about the world as necessarily subject to generalization. But the chief vehicles of generalization are generic statements, typically of the form “Fs are G,” not universal statements, typically of the form “All Fs are G.” Universal statements themselves are usually intended and (...) understood as though they were only generic. Even if there are universal facts, as Russell held, there are no generic facts. There is no genericity in the world as it is “in-itself.” There is genericity in it only as it is “for-us.”. (shrink)

According to the antirealist view of history, history is something historians construct in the present. Although the warrants they may gather in favour of past events do not form a coherent class, such warrants constitute the assertibility conditions of our statements about the past. They are by nature partial, gradual and defeasible. The antirealist is then faced with two problems. One is to account for a notion of historical significance, either in terms of causal links, broad patterns, or justified historiographic (...) generalizations. A second one is to secure a bound to the holistic construal of historical cognitive content. A coherent antirealist about history must explain why historical claims are in the market for truth, without taking the position of an ideal observer looking at the past from an a-historical fixed point outside time. (shrink)

Expressivism is the view that the function of normative sentences is not to represent a kind of fact, but to avow attitudes, prescribe behavior, or the like. The idea can be found in David Hume. In the 20th century, G.E. Moore’s Open Question Argument provided important support for the view. Elizabeth Anscombe introduced the notion of “direction of fit,” which helped distinguish expressivism from a kind of naive subjectivism. The central advantage of expressivism is that it easily explains the motivational (...) force of moral conviction. Its chief problem is it has difficulty explaining the “realist surface” of moralizing. Quasi-realism is a strategy for explaining the realist surface without abandoning the underlying ideas of expressivism. It aims to explain moral error as well as deal with the so-called Frege-Geach problem. This chapter explains quasi-realism, and evaluates it by comparison with its chief rivals: Aristotelian approaches, Kantian approaches, realist moral naturalism, and fictionalism. (shrink)

One of Mill's primary targets, throughout his work, is intuitionism. In this paper, I distinguish two strands of intuitionism, against which Mill offers separate arguments. The first strand, a priorism, makes an epistemic claim about how we come to know norms. The second strand, ‘first principle pluralism’, makes a structural claim about how many fundamental norms there are. In this paper, I suggest that one natural reading of Mill's argument against first principle pluralism is incompatible with the naturalism that drives (...) his argument against a priorism. It must, therefore, be discarded. Such a reading, however, covertly attributes Mill realist commitments about the normative. These commitments are unnecessary. To the extent that Mill's argument against first principle pluralism is taken seriously, I suggest, it is an argument that points towards Mill as having an antirealist approach to the normative. (shrink)

The project of antirealism is to construct an assertibility semantics on which (1) the truth of statements obeys a recognition condition so that (2) counterexamples are forthcoming to the law of the excluded third and (3) intuitionistic formal predicate logic is provably sound and complete with respect to the associated notion of validity. Using principles of intuitionistic mathematics and employing only intuitionistically correct inferences, we show that prima facie reasonable formulations of (1), (2), and (3) are inconsistent. Therefore, it (...) should not be assumed that the project of anti-realism as it bears upon intuitionistic mathematics and logic can be accomplished. (shrink)

This paper contributes to the debate on the question of whether a systematic connection obtains between one’s commitment to realism or antirealism and one’s attitude towards the possibility of radical theoretical novelty, namely, theory change affecting our best, most successful theories (see, e.g., Stanford in Synthese 196:3915–3932, 2019; Dellsén in Stud Hist Philos Sci 76:30–38, 2019). We argue that it is not allegiance to realism or antirealism as such that primarily dictates one’s response to the possibility of radical (...) theoretical novelty: what matters the most is, rather, the proposed alternative’s promise to realize one’s favored cognitive aim(s). Our argument tells not only against Stanford’s account of how adherence to realism or antirealism orients how one responds to possible radical theoretical novelty, but also against what we call the “natural pairing thesis.” According to such a thesis, which has kept resurfacing in the history of the philosophy of science, one-to-one pairings obtain between realism/antirealism, on the one hand, and theoretical conservatism/openness to radical theoretical novelty, on the other hand. As our argument suggests, however, when faced with the possibility of radical theoretical novelty, realists can respond either in a conservative way or by being open to theory change, not unlike antirealists. (shrink)

Economics is a controversial scientific discipline. One of the traditional issues that has kept economists and their critics busy is about whether economic theories and models are about anything real at all. The critics have argued that economic models are based on assumptions that are so utterly unrealistic that those models become purely fictional and have nothing informative to say about the real world. Many also claim that an antirealist instrumentalism (allegedly outlined by Milton Friedman in 1953) justifying such unrealistic (...) models has become established as the semi-official practitioners' philosophy of conventional economics. Others argue that what is the case in the economy and the way economics relates to it are socially constructed such that there is no economics-independent way the world worls or truths about it. On both of these pictures, realism would seem to have little do with economics. These pictures are too simplistic. There is more realism in and about economics than first would appear. To see this requires not just looking mere closely, but also adjusting one's conception of scientific realism. It also requires taking a critical stance on much of what economicsts themselves and other commentators have claimed. Yet, historically, there is much wisdom available in the philosophical self-image of the discipline. (shrink)

Borges has a rare ability to put wild ideas into detective stories with reporting style. At least that is the impression that we got on his short stories. In particular, one of his short story is worthnoting: Tlon, Uqbar, Orbis Tertius. The story told us about a mysterious country called Uqbar, in apparently an unofficial reprint of Encyclopedia Britannica. It also tells about Tlon, a mysterious planet, created purely by imaginative minds. While this story clearly criticizes Berkeley view and may (...) be not related to our daily reality, a reinterpretation of this story leads us to a long standing discourse in the philosophy of science: to how extent the entire modern physics follow such a Berkeley-antirealism tendency? This paper is intended to bring this subject into our attention. We will also discuss shortly on antirealism in certain trends in theoretical physics and cosmology. (shrink)

Although Kuhn is much more an antirealist than a realist, the earlier and later articulations of realist and antirealist ingredients in his views merit close scrutiny. What are the constituents of the real invariant World posited by Kuhn and its relation to the mutable paradigm-related worlds? Various proposed solutions to this problem (dubbed the "new-world problem" by Ian Hacking) are examined and shown to be unsatisfactory. In The Structure of Scientific Revolutions, the stable World can reasonably be taken to be (...) made up of ordinary perceived objects, whereas in Kuhn's later works the transparadigmatic World is identified with something akin to the Kantian world-in-itself. It is argued that both proposals are beset with insuperable difficulties which render Kuhn's earlier and later versions of antirealism implausible. (shrink)

THE PHILOSOPHIC POSITION of which this essay is a partial expression shows science to be realistic in certain circumstances and antirealistic in others. But the position is not so irenic as this beginning might suggest. For one thing, the realism upon which this view of science depends, which I call radical realism, is different from any of the versions proposed over the years by the forces of realism in that controversy. For another, the antirealism envisioned for some of the (...) multiform occasions of science is not in the least a version of the well-known antirealism of the linguistic consensus but rather a modified antirealism that paradoxically depends for its clarity and force on that same radical realism. I have given some account of radical realism in earlier papers and books, but its full application to science is left for a forthcoming book. The present paper makes the point that it is impossible to reach a just settlement of the realism vs antirealism case--whether construed narrowly, as an issue for philosophy of science, or broadly, as an issue for the entire rational enterprise--if it is tried in the venue of the linguistic consensus. (shrink)

Scientific realists believe both what a scientific theory says about observables and unobservables. In contrast, scientific antirealists believe what a scientific theory says about observables, but not about unobservables. I argue that scientific realism is a more useful doctrine than scientific antirealism in science classrooms. If science teachers are antirealists, they are caught in Moore’s paradox when they help their students grasp the content of a scientific theory, and when they explain a phenomenon in terms of a scientific theory. (...) Teachers ask questions to their students to check whether they have grasped the content of a scientific theory. If the students are antirealists, they are also caught in Moore’s paradox when they respond positively to their teachers’ questions, and when they explain a phenomenon in terms of a scientific theory. Finally, neither teachers nor students can understand phenomena in terms of scientific theories, if they are antirealists. (shrink)

Up until recently social scientists took it for granted that their task was to account for the social world as objectively as possible: they were realists in practice if not always in their methodological sermons. This situation started to change in the 1960s, when a number of antirealist philosophies made inroads into social studies. -/- This paper examines critically the following kinds of antirealism: subjectivism, conventionalism, fictionism, social constructivism, relativism, and hermeneutics. An attempt is made to show that these (...) philosophies are false and are causing serious damage to social studies. -/- Next the subjective interpretation of probability is analyzed as a case of subjectivism. An approach to the subjective perception of justice is sketched as an example of the objective study of subjective experience. -/- Finally, the three main varieties of realism — naive, critical, and scientific — are outlined. It is argued that the scientific attitude involves scientific realism, which is put in practice even by scholars who, like Weber and Simmel, called themselves antirealists. (shrink)