Kitcher urges us to think of mathematics as an idealized science of human operations, rather than a theory describing abstract mathematical objects. I argue that Kitcher's invocation of idealization cannot save mathematical truth and avoid platonism. Nevertheless, what is left of Kitcher's view is worth holding onto. I propose that Kitcher's account should be fictionalized, making use of Walton's and Currie's make-believe theory of fiction, and argue that the resulting ideal-agent fictionalism has advantages over mathematical-object fictionalism.

Philip Kitcher is a leading figure in the philosophy of science, and he is part of a growing community of scholars who have turned their attention from the field’s long-time focus on questions of logic and epistemology to the relation between science and society. Kitcher’s book Science, Truth, and Democracy (2001) charted a course between relativism and realism, arguing that the aims of science emerge from not only scientific curiosity but also practical and public concerns. The book also (...) drew on John Rawls’s A Theory of Justice (1999) to develop an ideal of “well-ordered science,” and then applied the ideal to various aspects of the scientific research agenda. Ten years later, complex public issues like climate change have grown more urgent, and with many people questioning mainstream science on climate change, evolutionary biology, vaccines, stem cell research, and other topics, the tensions between science and democracy seem more pronounced than ever. Kitcher’s Science in a Democrat. (shrink)

What should the goals of scientific inquiry be? What questions should scientists investigate, and how should our resources be distributed between different lines of investigation? Philip Kitcher has suggested that we should answer these questions by appealing to an ideal based on the consideration of hypothetical democratic deliberations under ideal circumstances. The paper argues that we have no reason to adopt this ideal. The paper examines both traditional arguments for democracy and Kitcher's own reasons for adopting this ideal, (...) as presented in Kitcher (2001) and in Kitcher (2011b), and argues that none of these supports adoption of Kitcher's proposed ideal. (shrink)

In his (1978) and parts of (1993), Philip Kitcher advances a new context-sensitive theory of reference which he applies to abandoned theoretical expression-types, such as Joseph Priestley’s ‘dephlogisticated air’, in order to show that, although qua types they fail to refer uniformly, they nonetheless have referential tokens. This piece offers a critical examination of Kitcher’s theory. After a general investigation into the overall adequacy of Kitcher’s theory as a general account of reference, I focus on the case (...) of abandoned theoretical terms. Kitcher’s theory is meant to be able to evaluate and solve disputes about referential continuity and progress in scientific theorychange. To this end, Kitcher employs the principle of humanity and a notion of the “correct historical explanation” of the production of each expression-token. I argue that the application of the principle of humanity does not offer a principled way to show that the historical actors were involved in different modes of reference when they produced different tokens of an expressiontype. I also suggest that the principle of humanity, coupled with Kitcher’s view that tokens of expression-types may systematically refer to different things, makes conceptual progress too easy and thus uninteresting. (shrink)

This commentary on Philip Kitcher’s Ethical Project compares his theory of the evolution of morality with my less ambitious theory of the evolution of fairness norms that seeks to flesh out John Mackie’s insight that one should use game theory as a framework within which to assess anthropological data. It lays particular stress on the importance of the folk theorem of repeated game theory, which provides a template for the set of stable social contracts that were available to ancestral (...) hunter-gatherer communities. It continues by drawing attention to the relevance of Harsanyi’s theory of empathetic preferences in structuring the fairness criteria that evolved as one response to the equilibrium selection problem that the folk theorem demonstrates is endemic in our species. (shrink)

This paper offers a new account of metaphysical explanation. The account is modelled on Kitcher’s unificationist approach to scientific explanation. We begin, in Sect. 2, by briefly introducing the notion of metaphysical explanation and outlining the target of analysis. After that, we introduce a unificationist account of metaphysical explanation before arguing that such an account is capable of capturing four core features of metaphysical explanations: irreflexivity, non-monotonicity, asymmetry and relevance. Since the unificationist theory of metaphysical explanation inherits irreflexivity and (...) non-monotonicity directly from the unificationist theory of scientific explanation that underwrites it, we focus on demonstrating how the account can secure asymmetry and relevance. (shrink)

With his book The Nature of Mathematical Knowledge (1983), Ph. Kitcher, that had been doing extensive research in the history of the subject and in the contemporary debates on epistemology, saw clearly the need for a change in philosophy of mathematics. His goal was to replace the dominant, apriorist philosophy of mathematics with an empiricist philosophy. The current philosophies of mathematics all appeared, according to his analysis, not to fit well with how mathematicians actually do mathematics. A shift in (...) orientation should invoke the more general reflection that causal, genetic factors are as significant for epistemology as logical structure. As I am to a large extent sympathetic with Kitcher's proposal, my aims here will be simple: first I start presenting Kitcher's argument, and then I try to raise some doubts about his contribution. These doubts come probably from my unskilfulness to follow the torrential flow of Kitcher's ideas. (shrink)

Recent years have seen a number of naturalist accounts of mathematics. Philip Kitcher’s version is one of the most important and influential. This paper includes a critical exposition of Kitcher’s views and a discussion of several issues including: mathematical epistemology, practice, history, the nature of applied mathematics. It argues that naturalism is an inadequate account and compares it with mathematical Platonism, to the advantage of the latter.

This paper examines three specific issues raised by The Ethical Project. First, I discuss the varieties of altruism and spell out the differences between the definitions proposed by Kitcher and the ways altruism is usually conceived in biology, philosophy, psychology, and economics literature. Second, with the example of Kitcher’s account, I take a critical look at evolutionary stories of the emergence of human ethical practices. Third, I point to the revolutionary implications of the Darwinian methodology when it is (...) thoughtfully applied to ethics. (shrink)

The thesis that scientific inquiry must operate within moral constraints is familiar and unobjectionable in cases involving immoral treatment of experimental subjects, as in the infamous Tuskegee experiments. However, in Science, Truth, and Democracy1 and related work,2 Philip Kitcher envisions a more controversial set of constraints. Specifically, he argues that inquiry ought not to be pursued in cases where the consequences of its pursuit are likely to affect negatively the lives of individuals who comprise a socially underprivileged group. This (...) constraint is controversial because it imposes moral obligations upon scientific inquirers that they do not have as moral agents generally.3 That is, whereas the familiar prohibitions against the violation of the rights of experimental subjects amount to the enforcement of fundamental moral obligations in the laboratory and the denial that such obligations can be overridden for the sake of scientific discovery, Kitcher argues that scientists incur in virtue of their role as scientists a set of distinctive moral obligations with regard to individuals belonging to underprivileged groups. In this way, Kitcher is proposing an autonomous ethics of inquiry rather than arguing for the extension of familiar moral obligations to scientific inquiry. (shrink)

In The Advancement of Science (1993) Philip Kitcher develops what he calls the 'Compromise Model' of the closure of scientific debates. The model is designed to acknowledge significant elements from 'Rationalist' and 'Antirationalist' accounts of science, without succumbing to the one-sidedness of either. As part of an ambitious naturalistic account of scientific progress, Kitcher's model succeeds to the extent that transitions in the history of science satisfy its several conditions. I critically evaluate the Compromise Model by identifying its (...) crucial assumptions and by attempting to apply the model to a major transition in the history of biology: the rejection of 'naive group selectionism' in the 1960s. I argue that the weaknesses and limitations of Kitcher's model exemplify general problems facing philosophical models of scientific change, and that recognition of these problems supports a more modest vision of the relationship between historical and philosophical accounts of science. (shrink)

Mathematical apriorists sometimes hold that our non-derived mathematical beliefs are warranted by mathematical intuition. Against this, Philip Kitcher has argued that if we had the experience of encountering mathematical experts who insisted that an intuition-produced belief was mistaken, this would undermine that belief. Since this would be a case of experience undermining the warrant provided by intuition, such warrant cannot be a priori.I argue that this leaves untouched a conception of intuition as merely an aspect of our ordinary ability (...) to reason. Thus the apriorist may still hold that some mathematical beliefs are warranted by intuition. (shrink)

In his most recent treatment of a priori knowledge, Philip Kitcher argues against what he takes to be the widespread view that our knowledge and warranted belief is 'tradition-independent'. Furthermore, he argues that defeasible conceptions of a priori warrant entail that it is not tradition-independent, a conclusion which he thinks is contrary to what most epistemologists hold. I argue that knowledge is not widely believed to be tradition-independent, and that, while warrant is widely believed to be tradition-independent, Kitcher's (...) arguments show neither that this widespread view is mistaken nor that it conflicts with defeasible a warrant. I conjecture that Kitcher may be misled by a lack of clarity regarding the analysandum designated by 'warrant'. (shrink)

Philip Kitcher's account of scientific progress incorporates a conception of explanatory unification that invites the so-called 'obsessive unifier' worry, to wit, that in our drive to unify the phenomena we might impose artificial structure on the world and consequently produce an incorrect view of how things, in fact, are. I argue that Kitcher's attempt to address this worry is unsatisfactory because it relies on an ability to choose between rival patterns of explanation which itself rests on the relevant (...) choice having already been made. I also suggest a way of answering the worry that Kitcher is not likely to endorse. (shrink)

I examine the relation between explanation and unification in both the original Kaluza–Klein theory, which originated in the works of Theodor Kaluza and Oskar Klein in the 1920s, and in the modern Kaluza–Klein theories which date back to the late 1970s and which are still considered by the majority of the physics community to be the best hope for a complete unified theory of all fundamental interactions. I use the conclusions of this case study to assess the merits of Philip (...) Kitcher's account of explanation as unification. I also draw lessons about physicists’ pursuit of the higher dimensional unification of the fundamental forces of nature. (shrink)

Philip Kitcher has proposed an account of mathematical truth which he hopes avoids platonistic commitment to abstract mathematical objects. His idea is that the truth-conditions of mathematical statements consist in certain general structural features of physical reality. He codifies these structural features by reference to various operations which are performable on objects: the world is structured in such a way that these operations are possible. Which operations are performable cannot be known a priori; rather, we hypothesize, conjecture, idealize, and (...) eventually wind up with theories which are true of the world, just as we do in the sciences. Kitcher argues that mathematical and physical knowledge are continuous, in that they concern the same subject matter and are subject to the same epistemological and methodological constraints. (shrink)

Le défi le plus important auquel doivent faire face les tenants d’une conception déflationniste de la vérité est l’argument de l’action réussie. Celui-ci fut défendu par Kitcher : afin de rendre compte d’une action réussie, il faudrait expliquer pourquoi une et une même action peut être à la fois psychologiquement et effectivement pertinente. Pour lui, seule la vérité-adéquation permet de répondre à cette exigence. Dans cet article, je soutiens qu’afin de rendre compte d’une action réussie, il convient d’expliquer en (...) quoi l’action d’un agent lui est un moyen approprié d’atteindre ses fins, et que cette explication même, dans le cadre d’une conception déflationniste, suffit à répondre à l’exigence théorique de Kitcher. (shrink)

By reducing the explanatory power of theories to their unifying power, unificationism seems the best candidate for a theory of explanatory relevance. I argue that Philip Kitcher's version of unificationism, which relies on the central concept of an argument pattern, can in principle not live up to such an expectation, because his notion of stringency, which is needed to distinguish between genuine and spurious unifications, relies on a prior notion of explanatory relevance.

Philip Kitcher is one of the most distinguished philosophers of our days. Since the rise of philosophy of biology in the 1960s Kitcher has deeply influenced and inspired many of the debates in this field. Among his most important books are The Advancement of Science (1993), In Mendel’s Mirror: Philosophical Reflections on Biology (2003), and Science in a Democratic Society (2011). However, Kitcher’s philosophical interest is not restricted to the philosophy of science. Rather, he has also made (...) groundbreaking contributions to ethics, to the philosophy of religion, to the philosophy of literature, to the philoso-phy of mathematics, and, most recently, to pragmatism. From a general perspective, two features of Kitcher’s work are particu-larly noteworthy. First, in most of his writings it becomes apparent that he takes a naturalistic stance. Kitcher characterizes himself as having an “impulse to naturalism”, which means that he resists the expansionist tendency to invoke entities or processes that are quite different from those studied in the various branches of inquiry (like Platonic forms or other abstract entities, Cartesian egos, and faculties of pure reason). Kitcher has explicated his naturalistic stance in The Naturalists Return (1992) and refined it in various recent works. Second, the philosophical questions that always have urged Kitcher most are questions that matter to human lives. Just to mention a few examples, these are questions like “How do we reconcile our scientific picture of the world with religion?”, “In which way does social practice impact scientist’s search for knowledge?”, or “How do we understand and improve our moral practices?”. In recent years Kitcher has argued that his focus is not merely due to his personal interests. Rather, he thinks that the only philosophical problems that are significant are those whose solution makes a difference to contemporary human life. Philosophers would be wise to focus on these pragmatically relevant kinds of questions, rather than addressing questions that are isolated from real life. In defending this claim, Kitcher expresses his affinity to the pragmatist tradition of Dewey and others. Thus, the second major characteristic of Kitcher’s work is that he takes up a pragmatist stance. Although Kitcher’s naturalistic and pragmatist impulses are discernible in most of his writings, he has only lately started to explicitly defend what he now calls pragmatic naturalism. His work on pragmatic naturalism contains innovative insights into questions about naturalism and pragmatism, while at the same time providing a meta-philosophical, unificatory framework for his longstanding work in various philosophical fields. Kitcher’s paper that is printed in this volume is one of the first publications in which he sets out his idea of pragmatic naturalism. This volume is the result of the 15th Münster Lectures in Philosophy which were hosted by the Department of Philosophy of the University of Münster from the 27th to the 29th of October 2011. The basic idea of the Lectures is to give advanced students of the Department the opportunity to get into discus-sion with important philosophers of our days. In line with what has become by now a venerable tradition, Kitcher gave a lecture to a public audience on the first evening of the Lectures, and he participated in a colloquium on the following two days. At this colloquium, eight groups of advanced students and faculty members presented papers on a wide range of topics from Kitch-er’s work. Both the lecture and the papers are published in this volume. In addition, it contains Kitcher’s detailed replies to the colloquium papers. (shrink)

This paper argues that Philip Kitcher's epistemology of mathematics, codified in his Naturalistic Constructivism, is not naturalistic on Kitcher's own conception of naturalism. Kitcher's conception of naturalism is committed to (i) explaining the correctness of belief-regulating norms and (ii) a realist notion of truth. Naturalistic Constructivism is unable to simultaneously meet both of these commitments.

Philip Kitcher has argued against the apriority of mathematical knowledge in a number of places. His arguments rely on a conception of mathematical knowledge as embedded in a historical tradition and the claim that this sort of embedding compromises apriority. In this paper, I argue that tradition dependence of mathematical knowledge does not compromise its apriority. I further identify the factors which appear to lead Kitcher to argue as he does.

The Philosophy of Philip Kitcher contains eleven chapters on the work of noted philosopher Philip Kitcher, whose work is known for its broad range and insightfulness. Topics covered include philosophy of science, philosophy of biology, philosophy of mathematics, ethics, epistemology, and philosophy of religion. Each of the chapters is followed by a reply from Kitcher himself. This first significant edited volume devoted to examining Kitcher's work is an essential reference for anyone interested in understanding this important (...) philosopher. (shrink)

The present paper discusses Kitcher’s framework for studying conceptual change and progress. Kitcher’s core notion of reference potential is hard to apply to concrete cases. In addition, an account of conceptual change as change in reference potential misses some important aspects of conceptual change and conceptual progress. I propose an alternative framework that focuses on the inferences and explanations supported by scientific concepts. The application of my approach to the history of the gene concept offers a better account (...) of the conceptual progress that occurred in the transition from the Mendelian to the molecular gene than Kitcher’s theory. (shrink)

Kitcher attempts to stake out a middle ground between two extremes. On one side, logical empiricism and a broader “Legend” took it for granted that every scientist is a rational agent, having all available information in mind, and making scientific decisions in terms of those reasons alone, so that science always changes for the right reasons. These mistaken claims missed the extent to which changes in the history of science have not been based on logic; they ignored social and (...) psychological factors as wholly irrelevant to the problems of the analysis of the purely scientific. At the other extreme are those who maintain that everything about science is shaped by social factors, omitting such “old-fashioned” philosophical virtues as objectivity, realism, and progress. For example, in Kitcher’s view, they miss the fact that the inability of a new scientific approach to solve all problems may be only temporary and not permanent indications of underdetermination, the problems being solvable only after considerable further work. By merging the best of both approaches while avoiding the excesses of each—by recognizing that psychological and social factors enter into scientific processes, even though objective considerations can ultimately prevail—Kitcher claims that we can enjoy many old-fashioned philosophical virtues “without abandoning important recent insights” from sociologically- and psychologically-minded writers.. (shrink)

Philip Kitcher has advanced an epistemology of science that purports to be naturalistic. For Kitcher, this entails that his epistemology of science must explain the correctness of belief-regulating norms while endorsing a realist notion of truth. This paper concerns whether or not Kitcher's epistemology of science is naturalistic on these terms. I find that it is not but that by supplementing the account we can secure its naturalistic standing.