This volume is dedicated to Rudolf Carnap and Hans Reichenbach, two of the greatest philosophers of this century, on the occasion of their 100th birthdays. It is presented by Erkenntnis, the journal they founded, and contains 22 contributions from the most renowned analytic philosophers and philosophers of science. The essays address many subjects, all of which are related to the work of Reichenbach and Carnap. They cover epistemology and philosophy of science, metaphysics, philosophy of language, and philosophical logic. They thus display the rich and lively influence of Reichenbach and Carnap on present-day philosophizing. Some further essays give valuable historical information on their philosophical setting and on some neglected aspects of their work; in particular, two unknown pieces by Reichenbach, one of which was never published, have been included in the volume.
