STEVE AWODEY is Associate Professor, Department of Philosophy, Carnegie-Mellon University, USADENIS BONNAY is Associate Professor, Department of Philosophy, University Paris X Nanterre, FranceJACQUES BOUVERESSE is Professor at the Collège de France, FranceANDRÉ W. CARUS is the author of numerous papers on CarnapRICHARD CREATH is Professor, Department of Philosophy and in the School of Life Science and Director Program in the History and Philosophy of Science, Arizona State University, USAMICHAEL FRIEDMAN is Frederick P. Rehmus Family Professor of Humanities and Professor of Philosophy, Stanford University, USAWARREN GOLDFARB has been on the faculty of the Philosophy Department at Harvard University since 1975THOMAS RICKETTS is Professor of Philosophy, University of Pittsburgh, USAPHILIPPE DE ROUILHAN is 'Directeur de Recherche' at the IHPST (Institut d'histoire et de Philosophie des Sciences et des Techniques), FranceTHOMAS UEBEL is Professor and Head of Philosophy, University of Manchester, UK