Gerhard Heinzmann is Professor of Philosophy of Mathematics and Logic in the Department of Philosophy at the University of Lorraine at Nancy (France). Founder of the Research Center Laboratoire d'Histoire des Sciences et de Philosophie - Archives Henri –Poincaré (UMR 7117 of the CNRS), former Director of the Lorrain Institute for Humanities and Social Sciences (MSH, 2007-2014), founder of the journal Philosophia Scientiae, he is the editor of the Publications of the Henri-Poincaré Archives (Birkhäuser). Author of numerous articles and books on the philosophy of Henri Poincaré, Ferdinand Gonseth, Jean Cavaillès and Paul Bernays, among them Zwischen Objektkonstruktion und Strukturanalyse. Zur Philosophie der Mathematik bei Henri Poincaré (1995) ; L’intuition épistémique. Une approche pragmatique du contexte de justification en mathématiques et en philosophie (2013), he was the President of the organizing Committee of the 14th International Congress of Logic, Methodology and Philosophy of Science (Nancy 2011), and is the President of the International Academy for Philosophy of Science, Brussels; he even is member of the Academia Europaea and the European Academy of Sciences. Gereon Wolters studied philosophy and mathematics at the universities of Innsbruck, Tübingen and Kiel. His main research areas are history and philosophy of science (Ernst Mach, philosophy of biology, logical empiricism), philosophy during National Socialism and World War I, science and religion, consequences of English as lingua franca in the humanities, philosophy of enlightenment. Visiting lecturer at the University of Zurich (1985-2008) and full professor at the University of Constance (since 1988, currently Emeritus), where he has founded and directed the Philosophisches Archiv. He was research fellow at the Center for Philosophy of Science  of the University of Pittsburgh (1996-97), at the Netherlands Institute for Advanced Study (2008/09) and at the He^Dritte Reich< (2004); Ambivalenz und Konflikt. Katholische Kirche und Evolutionstheorie (2010);  Globalizzazione del bene? (2015). - For more publications see his sites on academia.edu and ResearchGate.