Moderate realists hold that scientific theories are truthlike, rather than exactly true. Although scientific realism has been challenged by arguments such as the pessimistic induction, moderate realism hasn’t been challenged directly on the grounds that it makes scientific progress rely on inferences from theories that are only truthlike. This paper shows that moderate realism is incompatible with the claim that deductive arguments from scientific theories are reliable. Using truthlike claims as the premises of some patterns of deductive reasoning renders (...) the argument dramatically unreliable. The conclusion is not guaranteed to be true. Nor is the conclusion guaranteed to be at least as truthlike as the premises. Nor even is the conclusion shown to be likely to be true. This is because the consequences of truthlike theories are neither guaranteed to be true, nor even more likely to be truthlike than not. Truthlike theories cannot function like true theories in deductive arguments; instead they function as radically false theories would. In short, truthlike theories behave exactly like radically false theories for the purposes of their deductive consequences. And since scientists would not trust deductions from radically false theories, they should not trust deductions from truthlike theories either. Furthermore, this applies to a wide range of logics and patterns of deductive argument. The moderate realist must either reject bivalence, deny that theories are truth-apt, or accept that scientific theories are not used in deductive arguments. (shrink)

The present paper discusses different approaches to metaphysics and defends a specific, non-deflationary approach that nevertheless qualifies as scientifically-grounded and, consequently, as acceptable from the naturalistic viewpoint. By critically assessing some recent work on science and metaphysics, we argue that such a sophisticated form of naturalism, which preserves the autonomy of metaphysics as an a priori enterprise yet pays due attention to the indications coming from our best science, is not only workable but recommended.

In what follows, I will first try to show that both anti-realist and realist intensionalist truthconditional accounts of internal metafictional sentences (i.e., sentences of the form "in the story S, p") are unsatisfactory. Moreover, I will claim that this does not mean that propositional truthconditional accounts of those sentences are to be dispensed with; simply, one has to provide a non-intensionalist propositional truthconditional account of those sentences. Finally, I will show that this account is fully compatible with a (...) realist interpretation of those sentences' truthconditions according to which at least some of those sentences commit one to fictional entities. (shrink)

In the opening chapter of his Essay Concerning Human Understanding, John Locke explains that the self-understanding or self-measure of the human mind includes an account of the mind’s limits, and so the mind’s self-understanding can provide adequate grounds for intellectual self-moderation or self-control: “If we can find out, how far the Understanding can extend its view; how far it has Faculties to attain Certainty; and in what Cases it can only judge and guess, we may learn to content our selves (...) with what is attainable by us in this State.” Furthermore: “If we can find out those Measures, whereby a rational Creature put in that State, which Man is in, in this World, may, and ought to govern his Opinions, and Actions depending thereon, we need not be troubled, that some other things escape our Knowledge.” Compared to Locke’s Essay Concerning Human Understanding, Fichte’s Wissenschaftslehre may appear to exemplify the very opposite of intellectual modesty and self-control. Unlike Locke, Fichte argues that a true system of knowledge should not seek to limit or moderate itself by reference to what is allegedly unknowable outside of it. A true system of knowledge, writes Fichte, “. . . only has to agree with itself. It can be explained only by itself, and it can be proven - or refuted - only on its own terms.” Furthermore, Fichte suggests that an appreciation of his system of knowledge requires not modesty in his readers, but rather an implicit sense of superiority: “I wish to have nothing to do with those who, as a result of protracted spiritual servitude, have lost their own selves and, along with this loss of themselves, have lost any feeling for their own conviction . . .” In this essay, I shall seek to show that, contrary to initial impressions, it is Fichtean idealism, and not Lockean (or any similar) realism, that is truly modest. According to my account, Locke’s explicit declarations concerning the modesty and limitedness of his own project exhibit a certain ignorance concerning the genuine problems at issue. In his claim to be modest, the realist Locke professes to know more than he actually does, and thus manifests his own immodesty. By contrast, the idealist Fichte must refrain from such direct claims to modesty and must appear to be immodest, precisely because he has a greater understanding of how radically limited human knowledge always is. Like Plato’s Charmides, Fichte realizes that any explicit claim to self-limitation and self-moderation would actually give lie to itself. (shrink)

This article discusses a number of metaphors about the nature of science, in connection with three types of metaphysical realism: minimal, moderate and essentialistic realism. From the beginning, Kuipers accepts the first and rejects the third type of realism, but it is only later on that he endorses the second type. It is argued that this makes his remarks on essentialistic realism somewhat misleading; and his moderate realism is compared with some realist positions taken by other philosophers. It (...) is further argued that the metaphors of the mirror, the net and the map correspond to essentialistic, minimal and moderate realism, respectively. This explains why the map metaphor is by far the most suitable one in the context of Kuipers' theory of science. This does not imply, however, that it is the (only) true one and that the others are false. (shrink)

We discuss the implications of the findings reported in the target article for moral theory, and argue that they represent a clear and genuine case of fundamental moral disagreement. As such, the findings support a moderate form of moral anti-realism – the position that, for some moral issues, there is no fact of the matter about what is right and wrong.

Realists claim that, amongst the statements weunderstand, there are some which are true, yetwhose truth potentially transcends the limits ofwhat we can recognize. Dummett and othershave argued that this realist thesis is incompatiblewith an account of understanding in termsof recognitional capacities. But careful analysis revealsthat this contention is mistaken. Thealleged incompatibility presupposes the truth of ametaphysical principle which cannot bevindicated on the basis of an account of understanding.Realists have independent reason toreject this metaphysical principle, as it leads to (...) a collapseof more modest forms of realisminto more contentious ones. According to moderate realism,we neither know that there areactually recognition-transcendent truthsnor do we know taht there are none. Pending apositive case for the metaphysical principle, thisagnosticism is sufficient to warrant therealists' key thesis, viz. that there arepotentially recognition-transcendent truths. Thusrealism, in its more moderate guise, turns outto be the default position. (shrink)

There are two possible realist defense strategies against the pessimistic meta-induction and Laudan’s meta-modus tollens: the selective strategy, claiming that discarded theories are partially true, and the discontinuity strategy, denying that pessimism about past theories can be extended to current ones. A radical version of discontinuity realism is proposed by Gerald Doppelt: rather than discriminating between true and false components within theories, he holds that superseded theories cannot be shown to be even partially true, while present best theories are (...) demonstrably completely true. I argue that this position, running counter both the cumulativity of science and fallibilism, is untenable; it cannot account for the success of past theories, nor for the failures of current theories, and rather than shutting the door to the pessimistic historical objections it opens it wide. The best strategy, instead, joins the selective idea there was both some truth and some falsity in discarded theories, like in current ones, with the moderate discontinuity idea that the truth rate in present best theories is much greater than in past ones. (shrink)

Max Weber was the first to see that the writings of Machiavelli, when contrasted with the brutal realism of other cultural and political traditions, were not so extreme as they appear to some critics. "Truly radical 'Machiavellianism,' in the popular sense of that word,"Weber said in his famous lecture "Politics as a Vocation," "is classically expressed in Indian literature in the Arthashastra of Kautilya (written long before the birth of Christ, ostensibly in the time of Chandragupta [Maurya]): compared to (...) it, Machiavelli's The Prince is harmless." In this article, I contrast Machiavelli's writings to those of Kautilya (c. 300 B.C.E.) and question why Machiavelli omitted the harsher aspects of political domination such as spies, assassination of enemies, and torture. Could it be that he was afraid to tell a prince about the harsher characteristics of tyrannical rule? If so, why? (shrink)

I discuss some problems related to extreme mathematical realism, focusing on a recently proposed “shut-up-and-calculate” approach to physics. I offer arguments for a moderate alternative, the essence of which lies in the acceptance that mathematics is a human construction, and discuss concrete consequences of this—at first sight purely philosophical—difference in point of view.

In this paper I argue in favour of a moderate and selective version of scientific realism with respect to the existence of some physical theoretical objects and the truth of some statements about them. The analysis of common sense or ordinary experience reveals that existence and truth assertions concerning familiar objects are warranted if they satisfy what we call the criteria of presence and invariance. Ordinary objects exemplify a form or a structure determined by constant and changing features (...) with respect to the variation of the conditions of observation and a content given in sensory presence. It is claimed that some theoretical physical objects that possess a structure or a form determined by invariant and variable characteristics relatively to a specified group of transformations and a content provided by observations on which the measurement of those characteristics is grounded can also be justifiably asserted to exist. We further show that this defence of scientific realism in physics doesn't fall prey to the objections that have been raised against the usual vindication of scientific realism based on the no-miracle argument. Some standard objections to scientific realism, such as the underdetermination of theories by observations and the pessimistic meta-induction, are examined and shown to be unconvincing. (shrink)

Knowing that some state of affairs—expressed by a proposition, p—is possible, and the possibility that one knows that p have, quite obviously, different meanings. This paper focuses only on their logical relationship—whether they entail one another. I will argue for the following three claims: the basic verificationist principles of anti-realism, at least in their simplest forms, and in conjunction with some other, intuitively reasonable principles, do entail that these two concepts are substitutionally equivalent. Our pre-theoretical expectations question this (...) outcome, as counterexamples can be manufactured. I will also argue that this substitutional equivalence has further, highly counter-intuitive implications. Finally, I will argue that some of the standard strategies to avoid the well-known paradoxes of anti-realism fail to solve this new paradox, while others may be able to do that, but only at a considerable price. However, the introduction of a moderate anti-realist truth operator, the actual objective of this paper, does dissolve the paradox, and arguably at an affordable price. (shrink)

Seeking whether our perception produces knowledge which is not only relative or subjective perspective on things, is to be engaged in the realist/anti-realist debate regarding perception. In this article I pursue the naturalistic approach according to which the question whether perception delivers objective knowledge about the external world is inseparable from empirical investigation into mechanisms of perception. More precisely, I have focused on the dual aspect theory of perception, one of the most influential recent theories of perception which (...) unifies two traditionally opposite approaches to perception: ecological and constructivist. I have tried to show that the dualistic model of human vision does not support the majority of realist theses aimed at non-relativism, but supports only pragmatic realism about observational reports (dorsal system) and the moderate realism about observational reports (ventral system). (shrink)

This paper considers medieval moderate realism with respect to universals. In the first part, I present and discuss the reasons why some late medieval philosophers—for example, Pseudo-Richard of Campsall and Richard Brinkley—hold the following conjunction of claims: whatever exists is particular and universals exist. The short answer is that such a conjunction is possible provided one distinguishes between what is de se and what is de facto. In the second part, I compare such a philosophical stance with other forms (...) of medieval realism and trace the de se/de facto distinction back to (at least) Albert the Great’s definition of universals. As a whole, the paper is an attempt to shed some light on what appears to be the magic formula of medieval moderate realism, namely: be a realist with respect to universals and stick to particularist ontology. (shrink)

In this article, I address concerns that the ontological priority claims definitive of ontic structural realism are as they stand unclear, and I do so by placing these claims on a more rigorous formal footing than they typically have been hitherto. I first of all argue that Kit Fine’s analysis of ontological dependence furnishes us with an ontological priority relation that is particularly apt for structuralism. With that in place, and with reference to two case studies prominent within the structuralist (...) literature, I consider whether any of structuralism’s distinctive priority claims may be regarded as warranted. The discussion as a whole has largely negative implications for the radical structuralism of French and Ladyman (including their ‘eliminativist’ interpretation of it), largely positive implications for the moderate structuralism primarily advocated by Esfeld and Lam, and some broad lessons for contemporary fundamentalist metaphysics as a whole. 1 Introduction2 The Right Priority Relation for Structuralism: Supervenience or Dependence?3 Introducing Ontological Dependence4 Fine’s System5 The Priority of Structure 1: Entangled Quantum Particles6 The Priority of Structure 2: The Group-Theoretic Conception of Elementary Particles7 Concluding Remarks. (shrink)

THE problem of universals has been with us at least since the time of Plato and it is no surprise that the first solution was what can be termed a realist one. Not a few have argued that there is something commonsensical about the claim that we call some things by a common term because it seems quite plausible that there are kinds of things and that they are not entirely the creations of our minds. The path of (...) realism has been trodden by many notables, and current literature calls attention to the fact that, in spite of all its problems, the realist view still has its own appeal. This is true now and is even more easily documented for the thirteenth century when the question of the ontological status of universals was fiercely debated in the young universities of Europe. Roger Bacon was beginning his teaching career at the University of Paris in the early 1240s and an inspection of his works reveals that on three occasions he entered the debate ex professo, namely, in his Questiones supra libros prime philosophie Aristotelis, in his Questiones altere supra libros prime philosophie Aristotelis, and in the Liber primus communium naturalium Fratris Rogeri. Hence it is in these that we should look to discover whether he was a nominalist, a moderate realist, or an extreme realist, or indeed whether he developed a position uniquely his own. (shrink)

Responds to Leiter's naturalist/realist approach to jurisprudence - particularly his claim that such an approach implies exclusive positivism. Considers analogy with naturalized epistemology. "With regard to the first step the realists were anti-foundationalists in the sense that they 'denied that legal reasons justify a unique decision: the legal reasons underdetermine the decision '. The second step, the replacement suggests that instead of a justificatory account of adjudication, i.e. some prescription as to how judges should decide cases, the reaslists (...) provided an empirical description o fhow judges actually decide cases." Notes that positivists are generally commited to a moderate foundationalism by their acceptance of a RoR. "[T]he analogy with the epistemological anti-foundationalist thesis would suggest that foundationalism in law is committed to the view that if X is a legal norm, it is a legal norm in virtue of inference from self-validating foundations. There is nothing in this view that commits the legal foundationalist to the view that legal norms necessarily cover the entire practical domain, and therefor provide a determinate answer to every practical question...Now, if the anti-foundationl step fails, then we need not, indeed must not, take the second step, because if we take it, we will lsoe something of great importance for our understanding of law. If legal norms qua reasons are part of what determines the outcome of cases, then in order to understand how legal decisions are reached, we cannot disregard them." If Leiter rejects this moderate foundationalism, then it is in tension with his other claim that the realists were positivists. Goes on to argue that nothing in the realist program contributes to the hard vs. soft positivism debate and, in fact, does nothing to substantiate positivism. Offers brief explication of "positivism of norms". (shrink)

The Aristotelian double characterization of a primary substanceexploits the difference between the part-whole relation and the non-linguisticrelation of predication. A problem arises whether and how the second relationcould be reduced to something else. Such a reduction is explicitly declared orat least implicitly assumed in all version of conceptualism and nominalism.The moderate realism is often interpreted as a reductionism of this kindbut such interpretations do not seem corect. Only the so called resemblancetheory can be regarded as a successful attempt at the (...) reduction in question.However, it seems that the predication per se cannot be disposed of even inthis way. If so, then the nature of the relation of predication still waits fora precise analysia and description. This would provide an insight into theessence of a universal being. (shrink)

This paper is in five sections. In the first one, I summarize some views on truthmaking I will be presupposing, emphasizing however the various controversies on which I will remain neutral. In section two and three, I present the characterization of a response-dependent property. In section four, I present two ways in which a property can be response-dependent, in the characterized sense. In final section five, I present how these correspond to different versions of moderate relativism, namely indexical and (...) nonindexical contextualism. Thus the view presented here contrasts not only with pluralism about truth, but also with radical relativism about truth, as recently defended by John MacFarlane. (shrink)

This article examines some of the links between the nineteenth century Tractarian leader Edward Pusey and the Romantic poets, particularly Samuel Taylor Coleridge, in relation to eucharistic theology, especially Pusey's 1836 ‘Lectures on Types and Prophecies of the Old Testament’. Pusey's sacramental theology was affected by the Romantic poets in the expression of moderate realism which also played an important part in the Oxford Movement. Like the Romantic poets, Pusey saw nature as pointing to and conveying the presence of (...) God and this had clear connections for Pusey to a moderate realist sacramental theology where the presence of the divine was known through the material: things like bread and wine and water. (shrink)

This article examines some of the links between the nineteenth century Tractarian leader Edward Pusey and the Romantic poets, particularly Samuel Taylor Coleridge, in relation to eucharistic theology, especially Pusey's 1836 ‘Lectures on Types and Prophecies of the Old Testament’. Pusey's sacramental theology was affected by the Romantic poets in the expression of moderate realism which also played an important part in the Oxford Movement. Like the Romantic poets, Pusey saw nature as pointing to and conveying the presence of (...) God and this had clear connections for Pusey to a moderate realist sacramental theology where the presence of the divine was known through the material: things like bread and wine and water. (shrink)

Seeking whether our perception produces knowledge which is not only relative or subjective perspective on things, is to be engaged in the realist/anti-realist debate regarding perception. In this article I pursue the naturalistic approach according to which the question whether perception delivers objective knowledge about the external world is inseparable from empirical investigation into mechanisms of perception. More precisely, I have focused on the dual aspect theory of perception, one of the most influential recent theories of perception which (...) unifies two traditionally opposite approaches to perception: ecological and constructivist. I have tried to show that the dualistic model of human vision does not support the majority of realist theses aimed at non-relativism, but supports only pragmatic realism about observational reports (dorsal system) and the moderate realism about observational reports (ventral system). (shrink)

This is a study of the political theory of the Enlightenment, focusing on four leading eighteenth-century thinkers: David Hume, Adam Smith, Montesquieu and Voltaire. Dennis C. Rasmussen calls attention to the particular strand of the Enlightenment these thinkers represent, which he terms the 'pragmatic Enlightenment'. He defends this strand of Enlightenment thought against both the Enlightenment's critics and some of the more idealistic Enlightenment figures who tend to have more followers today, such as John Locke, Immanuel Kant and Jeremy (...) Bentham. Professor Rasmussen argues that Hume, Smith, Montesquieu and Voltaire exemplify an especially attractive type of liberalism, one that is more realistic, moderate, flexible, and contextually sensitive than most other branches of this tradition. (shrink)

Seeking whether our perception produces knowledge which is not only relative or subjective perspective on things, is to be engaged in the realist/anti-realist debate regarding perception. In this article I pursue the naturalistic approach according to which the question whether perception delivers objective knowledge about the external world is inseparable from empirical investigation into mechanisms of perception. More precisely, I have focused on the dual aspect theory of perception, one of the most influential recent theories of perception which (...) unifies two traditionally opposite approaches to perception: ecological and constructivist. I have tried to show that the dualistic model of human vision does not support the majority of realist theses aimed at non-relativism, but supports only pragmatic realism about observational reports (dorsal system) and the moderate realism about observational reports (ventral system). (shrink)

This paper argues the case for ontological realism as against various present‐day forms of conventionalist, instrumentalist, cultural‐relativist, or anti‐realist doctrine. In particular it takes issue with Richard Rorty’s writings on philosophy of science – where these ideas receive their most extreme and provocative statement – and with Bas van Fraassen’s more moderate ‘constructive empiricist’ approach. This latter entails ontological commitment to whatever shows up through trained observation or empirical research. However, it refuses to countenance realist claims concerning the (...) existence of (as yet) unobserved entities and their role in explanatory theories premised on putative laws of nature. I maintain that van Fraassen’s position is: (1) inadequate to account for our knowledge of the growth of scientific knowledge; (2) self‐refuting since often undermined by examples which he himself supplies; and (3) incapable of mounting resistance to other, more wholesale (e.g., Rortian) varieties of anti‐realist argument. Only by combining causal realism with a principle of inference to the best explanation can philosophy of science avoid these kinds of hyperinduced sceptical doubt. (shrink)

The recent debate in metaontology gave rise to several types of (more or less classical) answers to questions about "equivalences" between metaphysical theories and to the question whether metaphysical disputes are substantive or merely verbal (i.e. various versions of realism, strong anti-realism, moderate anti-realism, or epistemicism). In this paper, I want to do two things. First, I shall have a close look at one metaphysical debate that has been the target and center of interest of many meta-metaphysicians, namely the problem (...) of how material objects persist through time : the endurantism vs. perdurantism controversy. It has been argued that this debate is a good example of a merely verbal one, where two allegedly competing views are in fact translatable one into each other – they end up, contrary to appearances, to be equivalent. In my closer look at this debate, I will conclude that this is correct, but only to some extent, and that there does remain room for substantive disagreement. The second thing that I wish to achieve in this paper, and that I hope will stem from my considerations about the persistence debate, is to defend a metaontological view that emphasizes that when asking the question "Are metaphysical debates substantive or verbal?" the correct answer is "It depends." Some debates are substantive, some debates are merely verbal, sometimes it is true that a problem or a question can be formulated in equally good frameworks where there is no fact of the matter as to which one is correct or where we just cannot know it. Furthermore, importantly, as my examination of the persistence debate will show, there is room for the view that a debate is largely merely verbal but not entirely and that some parts of it are substantive, and decidable by philosophical methods. It is possible, and it is the case with respect to the persistence debate, that inside a debate some points are merely verbal while other are places of substantive disagreement. A moral of this is that, at the end of the day, the best way to do meta-metaphysics is to do first-level metaphysics. (shrink)

The recent debate in metaontology gave rise to several types of (more or less classical) answers to questions about "equivalences" between metaphysical theories and to the question whether metaphysical disputes are substantive or merely verbal (i.e. various versions of realism, strong anti-realism, moderate anti-realism, or epistemicism). In this paper, I want to do two things. First, I shall have a close look at one metaphysical debate that has been the target and center of interest of many meta-metaphysicians, namely the problem (...) of how material objects persist through time : the endurantism vs. perdurantism controversy. It has been argued that this debate is a good example of a merely verbal one, where two allegedly competing views are in fact translatable one into each other – they end up, contrary to appearances, to be equivalent. In my closer look at this debate, I will conclude that this is correct, but only to some extent, and that there does remain room for substantive disagreement. The second thing that I wish to achieve in this paper, and that I hope will stem from my considerations about the persistence debate, is to defend a metaontological view that emphasizes that when asking the question "Are metaphysical debates substantive or verbal?" the correct answer is "It depends." Some debates are substantive, some debates are merely verbal, sometimes it is true that a problem or a question can be formulated in equally good frameworks where there is no fact of the matter as to which one is correct or where we just cannot know it. Furthermore, importantly, as my examination of the persistence debate will show, there is room for the view that a debate is largely merely verbal but not entirely and that some parts of it are substantive, and decidable by philosophical methods. It is possible, and it is the case with respect to the persistence debate, that inside a debate some points are merely verbal while other are places of substantive disagreement. A moral of this is that, at the end of the day, the best way to do meta-metaphysics is to do first-level metaphysics. (shrink)

Some years ago Edward Regis, Jr. pointed to a serious gap in Aristotelian studies: "The centrality of the . . . 'problem of universals' to epistemology and metaphysics is hardly an issue for argument. Questions regarding the metaphysical status of universals and their relation to individuals, the process of 'concept formation,' and the epistemological function of universals in predication are classic ones in philosophy . . . In view of the contemporary interest in these problems as well as the (...) numerous studies of other topics treated of by Aristotle, it is a matter for at least initial surprise that there exists no systematic account of his views on universals." This essay attempts to fill this gap in Aristotelian studies partially. ;Aristotle's view of the universal went through three phases, and the essay attempts to give a systematic account of his early concept of it, as well as briefer accounts of his middle and late views. His early concept may be defined as 'an existent by nature asserted of several existents'. The essay attempts to explain this concept by explicating the two major terms of its definition, 'an existent' and 'is asserted of'. 'An existent' is explained on the basis of his doctrine of the categories and 'is asserted of' on the basis of some fundamentals of his early theory of the simple statement. His middle view of the universal may be defined as 'an existent which by nature belongs to several existents'. According to his late view, however, the universal is a mere potency, no longer an actually existing thing. ;After its account of Aristotle's three views, the essay reconsiders the commonly-held view that he is a moderate realist, arguing that, although moderate realism can be truly ascribed to him, it gives us neither an accurate nor an adequate statement of the nature of his universal. It concludes by briefly tracing the movement of thought on universals in Socrates, Plato and Aristotle. (shrink)

In Moderating the Debate: Rationality and the Promise of American Education, Michael Feuer raises concerns about the consequences of basing educational policy on the model of rational choice drawn from economics. Policy making would be better and more realistic, he suggests, if it were based on a newer procedural model drawn from cognitive science. In this essay Eric Bredo builds on Feuer's analysis by offering a more systematic critique of the traditional model of rationality that Feuer criticizes, a more critical (...) evaluation of the procedural model that he favors, and a recommendation that the situational model he does not consider may have some benefits over both. This analysis shows that the traditional model presupposes an actor that cannot learn or develop. While the actor in the procedural model can learn, Bredo contends that it cannot develop, that is, it cannot outgrow its initial assumptions and values. Only the situational model allows for learning and development, important in a model to be used in the field of education. Bredo also considers in his analysis the social‐relational assumptions built into the traditional, procedural, and situational models and the likely ethical consequences of acting on them. (shrink)

According to the “paradox of knowability”, the moderate thesis that all truths are knowable – ... – implies the seemingly preposterous claim that all truths are actually known – ... –, i.e. that we are omniscient. If Fitch’s argument were successful, it would amount to a knockdown rebuttal of anti-realism by reductio. In the paper I defend the nowadays rather neglected strategy of intuitionistic revisionism. Employing only intuitionistically acceptable rules of inference, the conclusion of the argument is, firstly, not ..., (...) but .... Secondly, even if there were an intuitionistically acceptable proof of ..., i.e. an argument based on a different set of premises, the conclusion would have to be interpreted in accordance with Heyting semantics, and read in this way, the apparently preposterous conclusion would be true on conceptual grounds and acceptable even from a realist point of view. Fitch’s argument, understood as an immanent critique of verificationism, fails because in a debate dealing with the justification of deduction there can be no interpreted formal language on which realists and anti-realists could agree. Thus, the underlying problem is that a satisfactory solution to the “problem of shared content” is not available. I conclude with some remarks on the proposals by J. Salerno and N. Tennant to reconstruct certain arguments in the debate on anti-realism by establishing aporias. (shrink)

The article treats the problem of interpretation in its respect to reality by example of Umberto Eco’s moderate ‚realistic‘ position and his criticism of Friedrich Nietzsche, the “father” of postmodernism. Here the strongest arguments on both sides are evaluated: Eco’s “negative realism” pointing out the impossibility of some interpretations and Nietzsche’s thinking out the absolute absence of a privileged position proceeding from which it would be possible to unequivocally identify what is real. The article argues that the crucial point (...) why some interpretations may prove to be stronger or weaker is best described in terms of the concept of power. One however should avoid misconceptions, since power itself is interpretation which nevertheless allows for the gradation of reality, the mobility of its horizons, their shifting and even their potential availability. A much-disputed question of prehistoric times as well as that of death as a limit of interpretability is inter alia included in the analysis. Both classical anti-realistic positions, such as that of Wittgenstein, and the argumentation of contemporary advocates of realism, such as Quentin Meillassoux, are taken into consideration. (shrink)

Each of the standard outlooks in the philosophy of perception --phenomenalism, direct realism, indirect realism, scepticism -- has thus been viewed as Hume's own considered position in the eyes of informed commentators. I argue that Hume does not ascribe univocally to any one of the traditional stances in the philosophy of perception, nor does he leave us only a schizophrenic or 'mood' scepticism. Hume attempted to resolve the traditional philosophical problem (or perhaps more accurately, to set it aside on principled (...) grounds) by transforming the issue from one of theoretical consistency to one of pragmatic coherence. Hume's moderate scepticism and his systematic naturalism entail a reflective 'return' to the vulgar (cp. T 223), a qualified normative endorsement of the directly realist beliefs of common life. The interpretive challenge is to understand the subtle nature of that endorsement, and to explain how it arises out of genuinely Humean doctrines. The account offered here attempts both to capture Hume's own considered position and to explain the attractions and shortcomings of each of the competing interpretations. After laying out the elements of Hume's account of perceptual belief (section I), I proceed to examine in some detail two recent attempts to interpret Hume as a realist (sections II-III). I contend that these revisionary accounts ascribe unHumean doctrines to Hume. The interpretation of Hume as an irreducible 'mood' sceptic or as a phenomenalist are in that respect both closer to the mark, but Hume's reflective return to the vulgar has recast the nature of the problem and leaves us with a position that is not reflected in the more traditional interpretations (section IV). (shrink)

Applying the rules and systems of mathematics and logic to instance ontology, this work argues for the validity and problem-solving capacities of instance ontology, and associates it with a version of the realist position which is named by the author as moderate realism.

I present some ideas from medieval thinkers concerning sentences which subject term has no reference and as kif those sentences can admit truth values. I present the ideas of William of Ockham, Jean Buridan and Albert of Saxony, from the nominalist side, and Vicente Ferrer exposing the moderate realism. Then we present two New Spain thinkers, Alonso de la Veracruz and Tomas de Mercado.

D. W. Mertz provides a "new" competitor in the universals debate by reviving, developing, and defending the medieval doctrine of Moderate Realism. This book is a substantial contribution to ontology and logic, combining interesting new arguments for polyadic relations and unit attributes, careful and thorough historical studies, and a logic that could solve many old problems.

I propose a dynamical analysis of interaction in anarchy, and argue that this kind of dynamical analysis is a more promising route to predicting the outcome of anarchy than the more traditional a priori analyses of anarchy in the literature. I criticize previous a priori analyses of anarchy on the grounds that these analyses assume that the individuals in anarchy share a unique set of preferences over the possible outcomes of war, peace, exploiting others and suffering exploitation. Following Hobbes' classic (...) analysis of anarchy, I maintain that typically in anarchy some moderate individuals will most desire mutual cooperation while other dominators will most desire to exploit others' cooperation. I argue that once one allows for different types of individuals in anarchy, any a priori analysis of anarchy requires unrealistic assumptions regarding the agents' common knowledge of their situation. However, this move also suggests a dynamical analysis of anarchy, one that assumes no common knowledge. In the Variable Anticipation threshold model developed here, individuals modify their behavior as they learn from repeated interactions. I present specific instances of this model where the individuals in anarchy converge to different equilibria corresponding to either peace or war, depending on the initial conditions. I show that individuals are liable to converge to Hobbes' war of all against all even if only a small percentage of are dominators. The presence of only a few “nasty” individuals gradually drives all, including those inclined to be “nicer”, to imitate the “nasty” conduct of these few. This dynamic analysis suggests that the Hobbesian war in anarchy is indeed inevitable in most realistic circumstances. You have the same propension, that I have, in favor of what is contiguous above what is remote. You are, therefore, naturally carry'd to commit acts of injustice as well as I. Your example both pushes me forward in this way by imitation, and also affords me a new reason for any breach of equity, by showing me, that I shou'd be the cully of my integrity, if I alone shou'd impose on myself a severe restraint amidst the licentiousness of others. (David Hume, A Treatise of Human Nature) (Published Online July 11 2006) Footnotes1 Thanks to Luc Bovens, Sharon Lloyd, Brian Skyrms, Susanne Sreedhar and an anonymous referee for many helpful comments of early versions of this essay. (shrink)

This paper sets out a moderate version of metaphysical structural realism that stands in contrast to both the epistemic structural realism of Worrall and the—radical—ontic structural realism of French and Ladyman. According to moderate structural realism, objects and relations (structure) are on the same ontological footing, with the objects being characterized only by the relations in which they stand. We show how this position fares well as regards philosophical arguments, avoiding the objections against the other two versions of structural realism. (...) In particular, we set out how this position can be applied to space-time, providing for a convincing understanding of space-time points in the standard tensor formulation of general relativity as well as in the fibre bundle formulation. (shrink)

John Cook Wilson (1849–1915) was Wykeham Professor of Logic at New College, Oxford and the founder of ‘Oxford Realism’, a philosophical movement that flourished at Oxford during the first decades of the 20th century. Although trained as a classicist and a mathematician, his most important contribution was to the theory of knowledge, where he argued that knowledge is factive and not definable in terms of belief, and he criticized ‘hybrid’ and ‘externalist’ accounts. He also argued for direct realism in perception, (...) criticizing both empiricism and idealism, and argued for a moderate nominalist view of universals as being in rebus and only ‘apprehended’ by their particulars. His influence helped swaying Oxford away from idealism and, through figures such as H. A. Prichard, Gilbert Ryle, or J. L. Austin, his ideas were also to some extent at the origin of ‘moral intuitionism’ and ‘ordinary language philosophy’ which defined much of Oxford philosophy until the second half of the twentieth-century. Nevertheless, his name and legacy were all but forgotten for generations after World War II. Still, his views on knowledge are with us today, being in part at work in the writings of philosophers as diverse as John McDowell, Charles Travis, and Timothy Williamson. (shrink)