Stig Kanger made important contributions to logic and formal philosophy. Kanger's dissertation Provability in Logic, 1957, contained significant results in proof theory as well as the first fully worked out model-theoretic interpretation of quantified modal logic. It is generally accepted nowadays that Kanger was one of the originators of possible worlds semantics for modal logic. Kanger's most original achievements were in the areas of general proof theory, the semantics of modal and deontic logic, and the logical analysis of the (...) concept of rights. He also contributed to action theory, preference logic, and the theory of measurement. This is the first of two volumes dedicated to the work of Stig Kanger. The present volume is a complete collection of Kanger's philosophical papers. The second volume contains critical essays on Kanger's work, as well as biographical essays on Kanger written by colleagues and friends. (shrink)

Lewis, D. Semantic analyses for dyadic deontic logic.--Salomaa, A. Some remarks concerning many-valued propositional logics.--Chellas, B. F. Conditional obligation.--Jeffrey, R.C. Remarks on interpersonal utility theory.--Hintikka, J. On the proper treatment of quantifiers in Montague semantics.--Mayoh, B.H. Extracting information from logical proofs.--Åqvist, L. A new approach to the logical theory of actions and causality.--Pörn, I. Some basic concepts of action.--Bouvère, K. de. Some remarks concerning logical and ontological theories.--Hacking, I. Combined evidence.--Äberg, C. Solution to a problem raised by Stig Kanger (...) and a set theoretical statement equivalent to the axiom of choice.--Lindström, P. On characterizing elementary logic.-- Scott, D. Rules and derived rules.--Hansson, B. A program for pragmatics.--Hermerén, G. Models.--Fenstad, J.E. Remarks on logic and probability.--Stenlund, S. Analytic and synthetic arithmetical statements. (shrink)

Stig Kanger made important contributions to logic and formal philosophy. Kanger's most original achievements were in the areas of general proof theory, the semantics of modal and deontic logic, and the logical analysis of the concept of rights. But he contributed significantly to action theory, preference logic and the theory of measurement as well. This is the second of two volumes dedicated to the work of Stig Kanger. The first volume is a complete collection of Kanger's philosophical papers. (...) The present volume contains critical essays on the various aspects of Kanger's work as well as some biographical sketches. Lennart Åqvist, Jan Berg, Brian Chellas, Anatoli Degtyarev, Lars Gustafsson, Sören Halldén, Kaj Børge Hansen, Sven Ove Hansson, Risto Hilpinen, Jaakko Hintikka, Ghita Holmström-Hintikka, Lars Lindahl, Sten Lindström, Ingmar Pörn, Dag Prawitz, Wlodek Rabinowicz, Krister Segerberg, Amartya Sen, Sören Stenlund, Göran Sundholm, and Andrei Voronkov have contributed to this volume. (shrink)

In the work of both Ludwik Fleck and Thomas Kuhn the scientific literature plays important roles for stability and change of scientific phenomenal worlds. In this article we shall introduce the analyses of scientific literature provided by Fleck and Kuhn, respectively. From this background we shall discuss the problem of how divergent thinking can emerge in a dogmatic atmosphere. We shall argue that in their accounts of the factors inducing changes of scientific phenomenal worlds Fleck and Kuhn offer substantially different (...) approaches, and we shall discuss in which respects their approaches may be compatible. (shrink)

`Proto-idea' was a central concept in the thinking of the Polish microbiologist and philosopher of science Ludwik Fleck (1896–1961). Based on studies of the origin of the modern concept of syphilis, Fleck claimed that many established scientific facts are best understood as interpretations of pre scientific, somewhat hazy `proto-ideas' in the framework of a certain `thought-style'. As an example,Fleck saw the modern knowledge of infection as an interpretation of the ancient proto-idea of diseases as caused by minute `animalcules'. However, the (...) epistemological aspects of the concept of proto-ideas have only been sparsely developed and discussed by Fleck and his critics. This paper attempts to bridge the gap. Firstly, I reconstruct the concept of proto-ideasin the context of Fleck's constructivist theory of knowledge. Secondly, I illustrate the relation between Fleck's concept of proto-ideas and his nominalist view on medical taxonomy. Finally, I discuss four philosophical problems implied by Fleck's concept of proto-ideas: (a) the problem of combining two conflicting perspectives on the history of science (b) the problem of accounting for the notion of` continuity' within a non realist theory of knowledge (c) the problem of ascribing no truth-content to proto-ideas, and (d) the problem concerning the non-neutrality of the analyst's viewpoint. (shrink)

Technology is increasingly subject of attention from philosophers. Philosophical reflection on technology exhibits a wide and at times bewildering array of approaches and modes of thought. This volume brings to light the development of three schools in the philosophy of technology. Based on thorough introductions to Karl Marx', Martin Heidegger's and John Dewey's thought about technology, the volume offers an in-depth account of the way thinkers in the critical, the phenomenological and the pragmatic schools have respond to issues and challenges (...) raised by the works of the founders of these schools. Technologies in almost any aspect of human life is potentially subject of philosophical treatment. To offer a focused demonstration of key arguments and insights, the presentation of each school is concluded with a contribution to discussions of educational technologies. In addition to philosophers seeking a valuable and clear structuring of a still burgeoning field, the volume is of interest to those working with educational philosophy and value sensitive design. „Stig Børsen Hansen’s book is a must for all interested in understanding the development of the philosophy of technology and the relation of thoughts of thinkers that have shaped the area. The author presents a new and refreshing take on the ideas from Marx to Marcuse, from Dewey to Latour, and Heidegger to Borgmann. It will engage and hopefully provoke." Dr. Jan Kyrre Berg Friis, University of Copenhagen. (shrink)

Abstract: This paper explores the relevance of themes from Wittgenstein's Tractatus Logico-Philosophicus to the ongoing discussion of metaphysical nihilism. I set out by showing how metaphysical nihilism is of paramount importance for cosmological arguments. Metaphysical nihilism is the position that there might have been nothing. Two conflicting intuitions emerge from a survey of discussions of metaphysical nihilism: Firstly, that metaphysical nihilism is true, and secondly, that formulations of the position are somehow unclear or nonsensical. By considering formalizations of philosophical language, (...) the second intuition is sharpened, while the first intuition is given expression through the Tractarian distinction between what is said and what is shown by our symbolism. I conclude by exploring and rejecting objections to making metaphysical nihilism a scientific, rather than a philosophical question. (shrink)

This book explores two questions that are integral to the question of the existence of God. The first question concerns the meaning of "existence" and the second concerns the meaning of "God". Regarding the first question, this book motivates, presents and defends the meta-ontology found in Gottlob Frege's writings and defended by Michael Dummett, Crispin Wright and Bob Hale. Frege's approach to questions of existence has mainly found use in connection with abstract objects such as numbers. This is one of (...) the first studies to systematically present Fregean meta-ontology and apply it to theology. Frege's meta-ontology is informed by his context principle. According to this, logico-syntactic notions such as "singular term" and "predicate" are pivotal to questions of what exists. These notions serve to throw light on the second question. Through thorough engagement with Old as well and New Testament texts, the book shows how Frege's logico-syntactic notions are of crucial importance when seeking to understand the meaning and use of "God". To complete the defence of Fregean meta-ontology, the book concludes by pointing to important differences between the otherwise closely associated concepts of an object found in Wittgenstein's Tractatus Logico-Philosophicus and Frege's writings. (shrink)

This Festschrift bears impressive testimony to the fascination which Icelandic and Norwegian sagas and Faroese ballads still exercise on researchers. Fifteen original papers examine central literary and historical aspects of Nordic sagas and ballads. The papers are published in German, English or Danish.

This article sets out by distinguishing Wittgenstein’s own views in the philosophy of religion from a school of thought in the philosophy of religion that relies on later Wittgenstein’s philosophy of language. After a survey of distinguishing features of Wittgenstein’s later philosophy, the third section explores Wittgenstein’s treatment of Frazer’s account of magic among primitive peoples. The following section offers an account of Wittgensteinian philosophy of religion, including the use of the notions of a language game and superstition. I conclude (...) by criticizing a very influential argument of Wittgenstein’s to the effect that the meaning of words like ‘belief’ and ‘object’ varies from context to context without having any one thing in common. (shrink)

In "representing and intervening", Ian hacking argues that on a fregean semantics of scientific theory, Incommensurability between competing theories threatens, In the strong sense of precluding their being about the same entities; whereas no such threat arises on putnam's account. On fregean principles, Hacking's argument would however at best support a much weaker claim. In any case, The pivot of his argument is the completely unfounded assumption that the fregean is commited to semantical holism.

The content of this book is essentially one argument. The aim of this book is to consider the breakdown of a certain world view during the twentieth century. This is mirrored in the treatment of both science and philosophy. As these form the foundation for the human position in the world, a major reorganization of the body of knowledge had to take place. Bohr and Wittgenstein have been chosen as the main actors to represent this revision. Each one had to (...) replace apparent order and certainty by an understanding based on limited concepts in constant flux. The conclusion is that the modern synthesis is far from satisfactory. By leaving the story unfinished in its present state, the book hopes to provoke a renewal of the discussion and the eventual emergence of a reformed clarity and understanding. Reality is to be left as it is, but the human mind is also to be left as it is. The problem is to find a way to effect a harmonious combination of these. (shrink)

The purpose of this paper is to show that the methods of determining monetary values of biodiversity depend on one's ethical point of departure. After a short summary of the ethical principles of anthropocentrism and biocentrism, the paper discusses the problem wether we shouldextend the market system and let the price mechanism encompass biological diversity, i.e. put prices on biodiversity. Basically, the anthropocentric approach leads to an ethics of freedom, where the individual has the right to decide what is good (...) and to implement it. Then the individual's willingness to pay for biodiversity is a relevant criterion for its price. But the biocentric approach rather implies that an ethic of law is more important, valuing the real needs of Nature higher than the preferences of the individual consumers. Then the costs for protection or replacement are relevant, because they reflect what Nature needs.One further question concerns who is to decide the proces of biodiversity. If the willingness to pay is the criterion, then obviously the market should decide, using well-developed methods. If on the other hand the costs of protection or replacement are relevant, technical and economic experts have to calculat them—given the politically decided level of biodiversity to be restored.The basic question, whether the market and the price mechanism should be considered acceptable instruments to protect biodiversity, is not discussed in the paper. However, some environmentalists find the wish to maximize one's utility incompatible with environmental ethics. Also, the price mechanism may take various roles. Thus, prices may convey different information about the value of biodiversity, depending on which role we assign to them. (shrink)