Logical positivism is often characterized as a set of naive doctrines on meaning, method, and metaphysics. In recent decades, however, historians have dismissed this view as a gross misinterpretation. This new scholarship raises a number of questions. When did the standard reading emerge? Why did it become so popular? And how could commentators have been so wrong? This essay reconstructs the history of a “caricature” and rejects the hypothesis that it was developed by ill-informed Anglophone scholars who failed to appreciate (...) the subtleties of European scientific philosophy. It argues that the received view has a more complicated history and was frequently promoted by the European positivists themselves. The essay shows that the view has roots in both American and European scientific philosophy and emerged as a result of the complex interplay between the two communities in the years before the intellectual migration. (shrink)

According to the article, Neurath's reflexive epistemology—expressed by the metaphor of the ship in need of reconstruction on the open sea—represents a philosophical alternative to the classical and contemporary forms of scientific realism and ethical cognitivism, including Popper's falsificationism. Against Quine's reductive interpretation of Neurath's boat argument as the basis for a 'naturalized epistemology,' the article maintains that the metaphor suggests the idea of an insuperable situation of linguistic and conceptual circularity. This prevents any attempt at self-foundation in scientific knowledge, (...) as well as in ethics and politics, and rules out any 'constructive philosophy' aiming to break circularity in pursuit of some methodological beginning. (shrink)

We compare Jan ?ukasiewicz's and Karl Popper's views on induction. The English translation of the two ?ukasiewicz's papers is included in the Appendix.

The paper consists of three parts. The aim of the first part is to depict the concept of science in the analytic philosophy of science to point out its characteristic defects. The second part shows how the constructive philosophy of science is able to avoid these defects by honouring not special modes of research but speicial modes of foundation of results in research with its criteria for science. The third part finally refutes the main counter-arguments of analytic philosophy of science (...) against the constructive. (shrink)

Popper's theory of demarcation has set the standard of falsifiability for all sciences. But not all falsifiable theories are part of science and some tests of scientific theories are better than others. Popper's theory has led to the banning of metaphysical and/or philosophical anthropological theories from science. But Joseph Agassi has supplemented Popper's theory to explain how such theories are useful as research programs within science. This theory can also be used to explain how interesting tests may be found. Theories (...) of rationality may be used to illustrate this point by showing how they fail or succeed in producing interesting and testable hypotheses in the social sciences. (shrink)

Eine Besonderheit der propensity-Theorie von Popper liegt darin, daß in ihr - im Gegensatz zu anderen Wahrscheinlichkeitstheorien - die Versuchsbedingungen explizit als Argument in der Wahrscheinlichkeitsfunktion erscheinen. Diese Besonderheit teilt sie mit der Ludwigschen Wahrscheinlichkeitstheorie. Diese Gemeinsamkeit legt die Frage nahe, ob sich aus dem Ludwigschen Formalismus die drei Bedingungen herleiten lassen, die nach Popper aus einer adäquaten Axiomatisierung einer propensity-Theorie folgen müssen. Diese Frage ist um so interessanter, als nach Keuth [1] zwei der Adäquatsbedingungen im Widerspruch zu Poppers eigener (...) Axiomatisierung stehen. Die Frage der Herleitbarkeit der Adäquatheitsbedingungen im Ludwigschen Formalismus hängt selbstverständlich stark von der gewählten "Übersetzung" der Popperschen Bedingungen ab. Das Ergebnis dieser Arbeit ist, daß es eine "Übersetzung" gibt, in der die Adäquatheitsbedingungen herleitbar sind. (shrink)

This paper responds to the essay reviews by David Haig, Alan Love and Rachel Brown of my recently published book “Homology, Genes and Evolutionary Innovation”. The issues addressed here relate to: the notion of classes and individuals, issues of explanatory value of adaptive and structuralist explanations in evolutionary biology, the role of homology in evolutionary theory, the limits of a pluralist stance vis a vis alternative explanations of homology, as well as the question whether and to what extend the perspective (...) laid out in HGEI can be or should be transferred to other branches of study, like comparative behavioral biology. (shrink)

Posner & Raichle (1994) is a nice addition to the Scientific American Library and the average reader will both enjoy the book and learn a great deal. As an activeresearcher, however, I find the book disappointing in many respects. My two major disappointments are in the illusion of computation that is created throughout the volume and in the inadequate perspective of the presentation on visual attention.

Summary The idea of man imitating by his own inventions capacities, considered genuinely human, like talking, making music or thinking, has fascinated man's phantasy at all times.

Since the birth of computing as an academic discipline, the disciplinary identity of computing has been debated fiercely. The most heated question has concerned the scientific status of computing. Some consider computing to be a natural science and some consider it to be an experimental science. Others argue that computing is bad science, whereas some say that computing is not a science at all. This survey article presents viewpoints for and against computing as a science. Those viewpoints are analyzed against (...) basic positions in the philosophy of science. The article aims at giving the reader an overview, background, and a historical and theoretical frame of reference for understanding and interpreting some central questions in the debates about the disciplinary identity of computer science. The article argues that much of the discussion about the scientific nature of computing is misguided due to a deep conceptual uncertainty about science in general as well as computing in particular. (shrink)

Summary I try to apply Lakatos's metacriterion of the rationality of normative philosophies of science to normative political theories, stressing that Lakatos's metacriterion is not only an extension of Popper's idea of tests by potentially falsifyingdescriptive basic judgments to tests by potentially falsifyingnormative judgments. Rather, its application is a test by demonstrating the tested theory's capability of reconstructing its own history as rational. Finally I argue that the tradition of utilitarian political theories is fittest to be confirmed by a Lakatosian (...) test. (shrink)

Ever since the first meeting of the proponents of the emerging Logical Empiricism in 1923, there existed philosophical differences as well as personal rivalries between the groups in Berlin and Vienna, headed by Hans Reichenbach and Moritz Schlick, respectively. Early theoretical tensions between Schlick and Reichenbach were caused by Reichenbach's (neo) Kantian roots (esp. his version of the relativized a priori), who himself regarded the Vienna Circle as a sort of anti-realist "positivist school"—as he described it in his Experience and (...) Prediction (1938). One result of this divergence was Schlick's preference of Carnap over Reichenbach for a position at the University of Vienna (in 1926), and his decision not to serve as a co-editor with Reichenbach for the journal Erkenntnis that they jointly established in 1930 (which was then co-edited by Carnap and Reichenbach from 1930 to 1938). A second split rooted in different views on induction and probability, which culminated in the Hans Reichenbach's refusal to serve as an invited author on probability within the International Encyclopedia of Unified Science series ed. by Rudolf Carnap, Charles Morris and Otto Neurath from 1938 onwards. In this regard it is remarkable that also Richard von Mises, who was the second leading figure of Logical Empiricism in Turkish exile, criticized the theory of probability put forward by his former Berlin colleague. In this paper I analyse this controversial exchange, drawing on the relevant correspondence and asking whether these (meta) philosophical differences were a typical feature of the pluralism inherent in Logical Empiricism in general. (shrink)

Ever since the first meeting of the proponents of the emerging Logical Empiricism in 1923, there existed philosophical differences as well as personal rivalries between the groups in Berlin and Vienna, headed by Hans Reichenbach and Moritz Schlick, respectively. Early theoretical tensions between Schlick and Reichenbach were caused by Reichenbach’s Kantian roots, who himself regarded the Vienna Circle as a sort of anti-realist “positivist school”—as he described it in his Experience and Prediction. One result of this divergence was Schlick’s preference (...) of Carnap over Reichenbach for a position at the University of Vienna, and his decision not to serve as a co-editor with Reichenbach for the journal Erkenntnis that they jointly established in 1930. A second split rooted in different views on induction and probability, which culminated in the Hans Reichenbach’s refusal to serve as an invited author on probability within the International Encyclopedia of Unified Science series ed. by Rudolf Carnap, Charles Morris and Otto Neurath from 1938 onwards. In this regard it is remarkable that also Richard von Mises, who was the second leading figure of Logical Empiricism in Turkish exile, criticized the theory of probability put forward by his former Berlin colleague. In this paper I analyse this controversial exchange, drawing on the relevant correspondence and asking whether these philosophical differences were a typical feature of the pluralism inherent in Logical Empiricism in general. (shrink)

Hypothetico-deductive (H-D) confirmation builds on the idea that confirming evidence consists of successful predictions that deductively follow from the hypothesis under test. This article reviews scope, history and recent development of the venerable H-D account: First, we motivate the approach and clarify its relationship to Bayesian confirmation theory. Second, we explain and discuss the tacking paradoxes which exploit the fact that H-D confirmation gives no account of evidential relevance. Third, we review several recent proposals that aim at a sounder and (...) more comprehensive formulation of H-D confirmation. Finally, we conclude that the reputation of hypothetico-deductive confirmation as outdated and hopeless is undeserved: not only can the technical problems be addressed satisfactorily, the hypothetico-deductive method is also highly relevant for scientific practice. (shrink)

The authors ofImages of the Mindhave made a significant contribution to our understanding of the brain through imaging technology. The book is well written, timely, beautifully illustrated and conveys a sense of history. It will appeal to alay audience as well as a professional audience.

To honour the memory of Sir Karl Popper, I put forward six elements of his philosophy which might be of particular interest to biologists and to philosophers of biology and which I think Popper would like them not to ignore, even if they disagree with him. They are: the primacy of problems; the criticizability of metaphysics (and thus the dubiousness of materialism); how downward causation might be real; how norms should matter to scientists; why dogmatism should be avoided; how genuine (...) science is recognizable. I preface these six things with a brief discussion of Popper's early (but later recanted) mistakes concerning biology. (shrink)

What happens when management consultants enter the academic arena and offer their services to universities? In the following article, we examine this question by drawing on findings from a qualitative study based on a series of 30 interviews with senior management consultants and academic managers in Germany. The aim of this explorative study is, first of all, to provide theoretically informed observations about the working mechanisms of management consulting in academia. A second, and related objective, is to contribute to the (...) ongoing debate on the changing nature, role, and implications of managerial expertise and authority in higher education institutions. We begin our study by providing an overview of the literature on the changing nature of university management. Although these studies show a shift in the power constellation of universities from professional to managerial authority, we argue that they remain suspiciously vague as concerns the way academics and managers actually deal with this conflicting situation. By drawing on the insights of consulting studies, we then explore the stakes of consultancy in academic change projects and determine the analytical factors that will guide our qualitative analysis. Finally, we present and discuss the findings before concluding with more general remarks on the nature of academic management in German universities. (shrink)

Popper has proposed a ?theory of situational rationality? as a basis for the social sciences. This theory of rational action is reconstructed and its methodological and substantial implications discussed. It is shown that methodologically Popper's idea of rational action leads to a version of theoretical instrumentalism which is incompatible with his general philosophy of science, and that substantially it implies an unacceptable theory of social institutions. Instrumentalism can be avoided by a more contentful theory of human action encompassing ?non?rational? or (...) ?irrational? kinds of action; Popper's theory of institutions might be improved through a more comprehensive theory of collective action. (shrink)

This paper describes the development of theories of scientific explanation since Hempel's earliest models in the 1940ies. It focuses on deductive and probabilistic whyexplanations and their main problems: lawlikeness, explanation-prediction asymmetries, causality, deductive and probabilistic relevance, maximal specifity and homogenity, the height of the probability value. For all of these topic the paper explains the most important approaches as well as their criticism, including the author's own accounts. Three main theses of this paper are: (1) Both deductive and probabilistic explanations (...) are important in science, not reducible to each other. (2) One must distinguish between (cause giving) explanations and (reason giving) justifications and predictions. (3) The adequacy of deductive as well as probabilistic explanations is relative to a pragmatically given background knowledge-which does not exclude, however, the possibility of purely semantic models. (shrink)

In this article, the author attempts to explicate the notion of the best known Talmudic inference rule called qal wa-omer. He claims that this rule assumes a massive-parallel deduction, and for formalizing it, he builds up a case of massive-parallel proof theory, the proof-theoretic cellular automata, where he draws conclusions without using axioms.

There are methodological problems with the new techniques reviewed by Posner & Raichle. Some brain mechanisms are not detected by the temporal and spatial resolution. Questions are also raised by the stimulation paradigms.

Carnap’s work was instrumental to the liberalization of empiricism in the 1930s that transformed the logical positivism of the Vienna Circle to what came to be known as logical empiricism. A central feature of this liberalization was the deployment of the Principle of Tolerance, originally introduced in logic, but now invoked in an epistemological context in “Testability and Meaning”. Immediately afterwards, starting with Foundations of Logic and Mathematics, Carnap embraced semantics and turned to interpretation to guide the choice of a (...) theoretical language for science. The first thesis of this paper is that recourse to an intended interpretation led to a partial retrenchment of the conventionalism implied by the Principle of Tolerance. It required that the choice of a language be based on abstraction from a context; this procedure later became a component of the process of explication that was distinctive to Carnap’s mature views. The interpretive origin of formal systems also ensured their likely syntactic consistency, an issue on which Carnap was strongly criticized by figures such as Beth and Gödel. The second thesis of this paper is that this reliance on an intended interpretation enabled constructed formal systems to be relevant to the development of empirical science. (shrink)

I present some counterexamples to Adams's Thesis and explain how they undermine arguments that indicative conditionals cannot be truth-evaluable propositions.

The pre-designationist, anti-inductivist and operationalist tenor of Neyman-Pearson theory give that theory an obvious affinity to several currently influential philosophies of science, most particularly, the Popperian. In fact, one might fairly regard Neyman-Pearson theory as the statistical embodiment of Popperian methodology. The difficulties raised in this paper have, then, wider purport, and should serve as something of a touchstone for those who would construct a theory of evidence adequate to statistics without recourse to the notion of inductive probability.

Images of mindsuperbly summarizes work on cognitive neuroscienee using PET scanning. Some of the data emphasized suggests that parietal cortex is involved in the disengagement of attention. We have discovered neurons in awake monkeys which could perform this function. Another point of emphasis is the concept of neutral cues. Although an appealing concept, it is extremely difficult to define what is actually neutral.

Taking its clues from Popperian philosophy of science, cladistics adopted a number of assumptions of the empiricist tradition. These include the identification of a dichotomy between observation reports and theoretical statements and its subsequent abandonment on the basis of the insight that all observation reports are theory-laden. The neglect of the ‘context of discovery’, which is the step of theory (hypothesis) generation. The emphasis on coherentism in the ‘context of justification’, which is the step of evaluation of the relative merits (...) of alternative theories. The appeal to a total evidence approach in phylogenetic inference. And finally, a silence about causation, which results in an instrumentalist approach to phylogeny reconstruction. This paper explores how these empiricist assumptions are embedded in phylogenetic systematics, and why these assumptions are problematic for cladists (or any taxonomists). (shrink)

The German synthesis of evolutionary theory that grew out of opposition to idealistic morphology has been anchored in the systematic work at the species level and below pursued by the Berlin School around Erwin Stresemann (involving Bernhard Rensch and Ernst Mayr), in the 1939 German translation of Dobzhansky’s Genetics and the Origin of Species, and in a 1943 anthology on evolution edited by Gerhard Heberer. The latter volume opened with a philosophical essay written by Hugo Dingler that was intended to (...) provide the theoretical foundation for the theory of descent. Dingler and Heberer not only shared a commitment to the Darwinian evolutionary mechanisms of random mutation and natural selection, but also drew from Darwinism the justification for racial hygiene and eugenics. Dingler’s “unequivocal-methodological system” is a meta-scientific construct that offers no ontological grounding of evolutionary theory. Dingler’s voluntarism is subjectivist and stipulative and for those reasons ineffective in a critique of idealistic morphology. Dingler claimed descent with modification as a historical fact, but dealt only marginally with evolutionary mechanisms, and did not touch on issues of phylogeny reconstruction. (shrink)

The paper approaches the topic of what a general philosophy of science could mean today from the perspective of a historical epistemology. Consequently, in a first step, the paper looks at the notion of generality in the sciences, and how it evolved over time, on the example of the life sciences. In the second part of the paper, the urgency of a general philosophy of science is located in the history of philosophy of science. Two attempts at the beginning of (...) the twentieth century are particularly highlighted: that of Karl Popper and that of Martin Heidegger. Both of them concentrate, albeit in widely different form, on the phenomenon of research as an open-ended process. This trend is even more pronounced in Gaston Bachelard’s version of a historical epistemology, whose work is taken as a point of reference for a general historical epistemology of research. The paper concludes with a plea to look, with Georges Canguilhem, at the history of the sciences as a laboratory for epistemology. (shrink)

Understanding Nature of Science is a central component of scientific literacy, which is agreed upon internationally, and consequently has been a major educational goal for many years all over the globe. In order to justify the promotion of an adequate understanding of NOS, educators have developed several arguments, among them the cultural argument. But what is behind this argument? In order to answer this question, C. P. Snow’s vision of two cultures was used as a starting point. In his famous (...) Rede Lecture from 1959, he complained about a wide gap between the arts and humanities on the one hand and sciences on the other hand. While the representatives of the humanities refer to themselves as real intellectuals, the scientists felt rather ignored as a culture, despite the fact that their achievements had been so important for Western society. Thus, Snow argued that as these intellectual cultures were completely different from each other, a mutual understanding was impossible. The first European Regional IHPST Conference took up the cultural view on science again. Thus, the topic of the conference “Science as Culture in the European Context” encouraged us to look at the two cultures and to figure out possibilities to bridge the gap between them in chemistry teacher education. For this reason, we put together three studies—one theoretical and two independent research projects which contribute to our main research field —in order to address the cultural argument for understanding science from an educational point of view. Among the consented tenets of what understanding NOS implies in an educational context, there are aspects which are associated mainly with the humanities, like the tentativeness of knowledge, creativity, and social tradition, whereas others seem to have a domain-specific meaning, like empirical evidence, theories and laws, and the role of technology. Thus, the cultural argument for understanding science invites us not only to consider domain-specific concepts but also to reflect on similarities between science and the humanities by way of examples. (shrink)

It is shown in a literature review, that in the Typostrophic Theory autonomous mechanisms in the organism are considered as the factors which play a decisive role in orienting and controlling the evolutionary process. Selection is a controlling factor of only minor importance. The Synthetic Theory, on the other side, says that phylogenetic changes are not random or controlled by “internal factors” but can always be considered as adaptive remodellings. They are achieved by selection acting on the variation within populations. (...) Ecological, historical and “bautechnische” factors are considered as limiting mechanisms in the evolutionary process. They are discussed in detail in the text. (shrink)

Summary Research consists of choosing a problem, proposing and testing problem solutions, and presenting the results. In its central moment — conjectures and testing — science must be autonomous in order to be successful. Securing this autonomy by organizational means is one of the tasks of research policy. Research needs to justify itself only when the researcher makes a claim to the resources of others. To discuss problems of justification of governmental support, it is imperative to distinguish between basic and (...) applied research. In basic research the problem choice is guided only by considerations of scientific interest , while in applied research the problems emanate from extra-scientific concerns since applied research is by definition a means for tackling concrete practical problems. Deciding on external criteria (e.g. deciding whether to support more energy research or more cancer research) is a genuine political problem rather than a problem of research policy. Thus applied research can be justified by referring to the benefit the expected results will yield, but basic research requires a completely different justification. One such justification is the argument that applied research requires a certain overhead in basic research. Securing an adequate balance between funding basic and applied research within the problem area concerned is another task of research policy. (E.g. in the area of cancer whether to support more molecular biology research or more clinical research.) When the overhead argument is not applicable, there still remain several possible justifications for basic research. These are examined in the paper. When setting priorities for basic research within a certain discipline, one apparently must turn to the scientific community itself. It may well be that the researches, who constitute the only expertise available for this task, have to rely on tacit knowledge . If so, this remains afaute de mieux procedure since articulated criteria would be preferable to intuitive procedures. The purpose of methodological reflection on research policy making is to supply intellectual instruments for making the discussion about substantive problems more rational. The substantive problems can be tackled only through the close cooperation of research policy makers and researchers. Thus methodology should not limit the degrees of freedom of either but increase them. (shrink)