Artur Rojszczak† The Jagiellonian University, Cracow, Poland

Jaakko Hintikka is the author or co-author of thirty volumes and of some 300 scholarly articles in mathematical and philosophical logic, epistemology, language theory, philosophy of science, history of ideas and history of philosophy, including Aristotle, Descartes, Leibniz, Kant, Peirce, The Bloomsbury Group, Husserl and Wittgenstein. He has also been active in international scholarly organizations, most recently as the First Vice-President of FISP, Vice-President of IIP and Co-Chair of the American Organizing Committee of the Twentieth World Congress of Philosophy. He has been Editor-in-Chief of the International Journal Synthese and the Managing Editor of Synthese Library since 1965.

This volume contains papers on truth, logic, semantics, and history of logic and philosophy. These papers are dedicated to Jan Woleński to honour his 60th birthday. Jan Woleński is professor of philosophy at the Department of Philosophy of the Jagiellonian University in Cracow, Poland. He is likely to be the most well-known Polish philosopher of this time, best known for his work on the history of the philosophy and logic of the Lvov-Warsaw School. Furthermore, he's published numerous books and articles dealing with various issues of epistemology and philosophy of language This collection is mainly addressed to researchers and graduate students in philosophy, logic, and history and philosophy of science.