The problem analysed in this paper is whether we can gain knowledge by using valid inferences, and how we can explain this process from a model-theoretic perspective. According to the paradox of inference (Cohen & Nagel 1936/1998, 173), it is logically impossible for an inference to be both valid and its conclusion to possess novelty with respect to the premises. I argue in this paper that valid inference has an epistemic significance, i.e., it can be used by an agent to (...) enlarge his knowledge, and this significance can be accounted in model-theoretic terms. I will argue first that the paradox is based on an equivocation, namely, it arises because logical containment, i.e., logical implication, is identified with epistemological containment, i.e., the knowledge of the premises entails the knowledge of the conclusion. Second, I will argue that a truth-conditional theory of meaning has the necessary resources to explain the epistemic significance of valid inferences. I will explain this epistemic significance starting from Carnap’s semantic theory of meaning and Tarski’s notion of satisfaction. In this way I will counter (Prawitz 2012b)’s claim that a truth-conditional theory of meaning is not able to account the legitimacy of valid inferences, i.e., their epistemic significance. (shrink)

Presented here is an overview from the standpoints of sociology, history of science, philosophy of science and “pure science” of the lingering question of whether sociology is a form of scientific pursuit. The conclusion is drawn that sociology barely meets any of the rigid criteria traditionally associated with the natural sciences. Sociology is viewed as having a position of theory and argument which is labeled “inconoclastic scepticism.”.

In 1675, Burchard de Volder (1643–1709) was the first professor to introduce the demonstration of experiment into a university physics course and built the Leiden Physics Theatre to accommodate this new pedagogy. When he requested the funds from the university to build the facility, he claimed that the performance of experiments would demonstrate the “truth and certainty” of the postulates of theoretical physics. Such a claim is interesting given de Volder’s lifelong commitment to Cartesian scientia. This chapter will examine de (...) Volder’s views on experiment and show that they are not Newtonian or inductivist, as is sometimes claimed. While de Volder thinks we need deductive reasoning from first principles to provide evidence of the certainty of the content of our physical theories, he also contends that we need experiment to provide evidence of the certainty of the existence of the particular bodies those theories discuss. This approach to experiment is based on a distinction between rational certainty and the certainty of material bodies in the actual world. While this account is deeply influenced by Descartes, it is importantly different than Descartes’ distinction between absolute and moral certainty. De Volder’s “Cartesian Empiricism” is best understood as a continuation and further development of a long tradition of teaching through observation at Leiden. (shrink)

The paper addresses issues of scientific conduct regarding relations between science and the media, relations between scientists and journalists, and attitudes towards the public at large. In the large and increasing body of literature on scientific conduct and misconduct, these issues seem underexposed as ethical challenges. Consequently, individual scientists here tend to be left alone with problems and dilemmas, with no guidance for good conduct. Ideas are presented about how to make up for this omission. Using a practical, ethical approach, (...) the paper attempts to identify ways scientists might deal with ethical public relations issues, guided by a norm or maxim of openness. Drawing on and rethinking the CUDOS codification of the scientific ethos, as it was worked out by Robert K. Merton in 1942, we propose that this, which is echoed in current codifications of norms for good scientific conduct, contains a tacit maxim of openness which may naturally be extended to cover the public relations of science. Discussing openness as access, accountability, transparency and receptiveness, the argumentation concentrates on the possible prevention of misconduct with respect to, on the one hand, sins of omission—withholding important information from the public—and, on the other hand, abuses of the authority of science in order to gain publicity. Statements from interviews with scientists are used to illustrate how scientists might view the relevance of the issues raised. (shrink)

This article argues that the limited influence of Ludwik Fleck's ideas on philosophy of science is due not only to their indirect dissemination by way of Thomas Kuhn, but also to an incommensurability between the standard conceptual framework of history and philosophy of science and Fleck's own more integratedly historico-social and praxis-oriented approach to understanding the evolution of scientific discovery. What Kuhn named "paradigm" offers a periphrastic rendering or oblique translation of Fleck's Denkstil/Denkkollektiv , a derivation that may also account (...) for the lability of the term "paradigm". This was due not to Kuhn's unwillingness to credit Fleck but rather to the cold war political circumstances surrounding the writing of The Structure of Scientific Revolutions . Following a discussion of Fleck's anatomical allusions, I include a brief discussion of Aristotle (on menstruation and darkened mirrors) and conclude with a reference to the productivity of error in Mach and Nietzsche. (shrink)

During the period before the Greek revolution of 1821, and especially during the years between 1750 and 1821, there were two ways in which European scientific thought was propagated in Greece. The first is traditional. It comes from ancient Greece and, through Byzantium, reaches the period before the Greek revolution. It makes known the thought of Aristotle, Democrititus, and others on ‘natural philosophy’. The second way comes from Europe. The Greek scholars of the period before the Greek revolution, and especially (...) at the end of the eighteenth century, tried to bring to and propagate in Greece the spirit ofthe European Enlightenment, They tried to make known to the Greek people the scientific achievements of Newton, Descartes, Lavoisier, and Laplace. Scientific knowledge is an important weapon against superstition, and Greek students had to learn about science to become free persons in an independent Greek state. (shrink)

My paper picks up a long ignored suggestion of Sheldon Wolin - that we use Thomas Kuhn''s analysis of scientific revolutions to examine the crisis of "normal" political science. This approach allows us to see the connection between the state of the discipline and the larger crisis of meaning afflicting modernity. I then use Eric Voegelin''s notion of a multicivilizational "truth quest" - or search for meaning - to make a case for institutionalizing "extraordinary" or "revolutionary" political science. I attempt (...) such a discipline by following Voegelin - reflecting on "the full amplitude of human experience." Such a meditation takes place within the "first reality of existence" - Plato''s metaxy or the "in-between" - the experience of human existence between the sacred and the mundane. I bring to Voegelin''s exploration of the metaxy the realm of experience which is most radically "other" for modernity - the primal political order of paleolithic and contemporary hunting gathering societies. I argue that shamanic "Urreligion" and Socratic discussion share a boundary crossing logic which provides a basis for a discipline of "extraordinary political science." Finally I suggest that such a discipline is both the quest for, and, in a sense, a realization of, the Good Life - a source of order for the individual and society. (shrink)

Zusammenfassung Fuer unseren Begriff der Gegenstaende der Biologie ist es charakteristisch, dass diese Gegenstaende eine Geschichte haben. Das unterscheidet sie von den Grundgegenstaenden der Physik, die wir so definieren, dass sie als Elemente in geschichtliche Ablaeufe zwar eingehen, ohne dabei indes selbst historischen Wandlungen unterworfen zu sein. Deswegen ist es im Rahmen biologischer Forschungen ueblich, Erklaerungen einmal fuer Veraenderungen und einmal fuer Entstehungen eines Lebewesens (einer Art) anzustreben.

Scientific progress has been understood as synonymous with the growth of knowledge and the advancement of humanity. In this brief survey, this concept is problematized both in rhetorical terms and within the neoliberal framework. Despite the sustained marketing of the scientific community and its funding agencies, the dangers associated with progress are explained and highlighted.

En este artículo se expone el lugar de Hannah Arendt en el contexto de la Guerra Fría. La historia de las ideas reinantes durante las primeras décadas del siglo XX fue asumida por los estudiosos de la historia de la filosofía y, desde ahí, elaboraron sus explicaciones en torno a la crisis de occidente. Este es el caso de Hannah Arendt quien, además, adoptó la concepción idealista de la historia de la ciencia de los años 50, representada por Alexandre Koyré.