Dr. Jens Lemanski, Privatdozent for Philosophy at the FernUniversitδt in Hagen, Germany holds a cotutela-Ph.D in philosophy from the Johannes-Gutenberg Universitδt Mainz and the Universitΰ del Salento (Lecce). He has been a research fellow at the Westfaelische Wilhelms-Universitaet Muenster and the Ruhr-Universitaet Bochum. He has published on the history and philosophy of science, metaphysics, logic, and the foundations of mathematics.