This monograph attempts to clarify one significant but much neglected aspect of Peirce’s contribution to the Philosophy of Science. Peirce claimed that besides deduction and induction there was another type of reasoning which he called abduction. Abduction is the reasoning process by which new ideas, explanatory hypotheses, and scientific theories are engendered. It is the logic of discovery and the essence of Pierce’s pragmatism. Peirce returned repeatedly to the investigation of the logic of abduction during his long creative life. His writings on the subject are typically fragmentary and diverse. They fall roughly into two periods. In the early period Peirce treated inference, and hence abduction, as an evidencing process. The three kinds of inference were considered independent forms of reasoning. In the later period the concept of inference was widened to include methodological as well as evidencing process. The three types of reasoning became three stages of inquiry. The author has reconstructed a consistant account of Peirce’s theory of abduction. In Part I the attention is focused on the chronological development of Peirce’s early theory, so that the later theory may be understood more clearly in the light of the earlier views. Part II contains a systematic presentation of the later theory and a critical analysis of Peirce’s contribution to the study of the logic of discovery.

This monograph attempts to clarify one significant but much neglected aspect of Peirce's contribution to the Philosophy of Science. Peirce claimed that besides deduction and induction there was another type of reasoning which he called abduction. Abduction is the reasoning process by which new ideas, explanatory hypotheses, and scientific theories are engendered. It is the logic of discovery and the essence of Pierce's pragmatism. Peirce returned repeatedly to the investigation of the logic of abduction during his long creative life. His writings on the subject are typically fragmentary and diverse. They fall roughly into two periods. In the early period Peirce treated inference, and hence abduction, as an evidencing process. The three kinds of inference were considered independent forms of reasoning. In the later period the concept of inference was widened to include methodological as well as evidencing process. The three types of reasoning became three stages of inquiry. The author has reconstructed a consistant account of Peirce's theory of abduction. In Part I the attention is focused on the chronological development of Peirce's early theory, so that the later theory may be understood more clearly in the light of the earlier views. Part II contains a systematic presentation of the later theory and a critical analysis of Peirce's contribution to the study of the logic of discovery.

This volume contains a selection of papers from the International Conference on Argumentation (Amsterdam, 2002) by prominent international scholars of argumentation theory. It provides an insightful cross-section of the current state of affairs in argumentation research. It will be of interest to all those working in the field of argumentation theory and to all scholars who are interested in recent developments in this field.

Most writing on sociological method has been concerned with how accurate facts can be obtained and how theory can thereby be more rigorously tested. In The Discovery of Grounded Theory, Barney Glaser and Anselm Strauss address the equally Important enterprise of how the discovery of theory from data?systematically obtained and analyzed in social research?can be furthered. The discovery of theory from data?grounded theory?is a major task confronting sociology, for such a theory fits empirical situations, and is understandable to sociologists and laymen alike. Most important, it provides relevant predictions, explanations, interpretations, and applications. In Part I of the book, "Generation Theory by Comparative Analysis," the authors present a strategy whereby sociologists can facilitate the discovery of grounded theory, both substantive and formal. This strategy involves the systematic choice and study of several comparison groups. In Part II, The Flexible Use of Data," the generation of theory from qualitative, especially documentary, and quantitative data Is considered. In Part III, "Implications of Grounded Theory," Glaser and Strauss examine the credibility of grounded theory. The Discovery of Grounded Theory is directed toward improving social scientists' capacity for generating theory that will be relevant to their research. While aimed primarily at sociologists, it will be useful to anyone Interested In studying social phenomena?political, educational, economic, industrial? especially If their studies are based on qualitative data.