Karl Maria Michael De LeeuwKarl de Leeuw has been engaged as a lecturer in Information Security at the University of Amsterdam and as an editor of sources about the history and philosophy of mathematics at the University of Utrecht. He has written his Ph. D about the history o cryptology in the Netherlands and has published extensively about this subject in scholarly journals in the U.S. and the U.K. His current research interests include the philosophy and history of science & technology, the history of computer science, and intelligence history; Jan Bergstra is a full professor in Computer Science at the University of Amsterdam. He is a logician by training and has a wide scope of interests. Read More Read Less