In the philosophy of science, the frame model is used in order to represent and analyze scientific concepts and conceptual change. However, the potential of the frame model is far from being fully exploited: Up to now, the frame model is only applied to a rather small set of different kinds of concepts and important advantages of the frame model for reconstructing and analyzing concepts have been neglected. In this article, we will essentially extend the frame model in the following (...) way: We will develop a frame-based approach for representing a comprehensive class of different kinds of concepts including conjunctively and disjunctively defined concepts, family resemblance concepts, prototype concepts, operationalized concepts, dual concepts integrating two different ways of concept determination, and theoretical concepts. In order to do so, we will define different kinds of frames with respect to the logical structure of the kind of concept that is represented by a particular frame. We will exemplify our approach by means of ten frames applied to standard cases of conceptual analyses in philosophy and cognitive science as well as to scientific concepts of political science, psychology, linguistics and physics. (shrink)

Incommensurability constitutes the focal point of Kuhn’s departure from the prevailing traditions in Philosophy of Science. The paper traces the mathematical origin of the concept of “incommensurability” and philosophical environment that constrained the introduction of the idea in the literature. It then discusses the stages through which the concept of “incommensurability” evolved in Kuhn’s thought. The final account of “incommensurability,” viz., Kinds Theory of Incommensurability or Taxonomic Incommensurability, is also expounded, and some associated philosophical problems are discussed. We analyze two (...) case studies, provide textual and historical evidence, and cite the work of scholars supporting the conceptual continuity across the revolutionary divide in both the case studies. Kuhn acknowledges the rigidity of his earlier position and softens his stand on incommensurability in his last formulation of the thesis, justifying the title of the paper that Kuhn’s thesis lost its bite. At the end of the paper, we discuss some of the philosophical problems arising out of it and make certain critical remarks on the final account. (shrink)