Discussions about abstraction are so important and so profound that this topic can hardly be neglected. It has inevitably cropped up again in various periods of philosophical enquiry. Despite these ancient roots and after the great debate that characterised the empirical and rationalistic tradition, interest in the problem has unfortunately been absent in large measure from the mainstream of mathematical logic and analytic philosophy. It seems that there is a gap between the epistemological theorization, in which it is difficult to find new insights on the problem of abstraction, and the historical studies concerning the development of philosophical thought. Such studies, however, present a more fertile ground for such insights. Here the reader will find presented for the first time a collection of papers about the topic, considered from an historical point of view together with an awareness of the need for building a bridge between historical research and theoretical speculation. Accordingly the volume consists of both general overviews which sketch the signifcance and the fortunes of abstraction in science, philosophy and logic (the first part) and historical case studies which focus on abstraction in particular thinkers (the second part). This volume is of interest for both general philosophers and historians of philosophy.

In this book the author has brought together his long-standing interests in theory of scientific rationality and hermeneutic ontology by developing a hermeneutic alternative to analytic (and naturalist) epistemology of science. The hermeneutic philosophy of science is less the name of a new field of philosophical than a demand for a repetition of the basic philosophical questions of science from hermeneutic point of view. The book addresses chiefly two subjects: (I) The hermeneutic response to the models of rational reconstruction of scientific knowledge; (II) The specificity of hermeneutico-ontological approach to the cognitive pluralism in science.

In recent years, the problem if idealization has been one of the central issues discussed in philosophy of science. This volume gathers original essays written by well-known philosophers. The papers address the method of idealization and its applications in science as well as ontological and epistemological problems that have arisen. Among the questions addressed are: What is the logical form of idealizational statements and how should they be interpreted? Is the possible worlds semantics useful in understanding idealization? What is the relation between idealization and truth? The volume is a celebration of Leszek Nowak's sixtieth birthday.

Contents: PART 1 INTELLECTUAL BACKGROUND. Ji_i MUSIL: The Prague Roots of Ernest Gellner's Thinking. Chris HANN: Gellner on Malinowski: Words and Things in Central Europe. Tamara DRAGADZE: Ernest Gellner in the Soviet East. PART 2 NATIONS AND NATIONALISM.