Jacek Malinowski is professor of logic and philosophy at the Instituite of Philosophy and Sociology, Polish Academy of Sciences, Warsaw, Poland. He received a Master degree in Mathematic from the University of Lódz, Poland, and Ph.D. and habilitation in Philosophy at Institute of Philosophy and Sociology, Polish Academy of Sciences. He held research positions at Free University of Brussels, Humboldt University in Berlin, University of Leipzig, the Netherland Institute of Advanced Study in Wassenaar. He published papers in algebraic logics, quantum logics, logical pragmatics. He is active as the editor-in-chief of Studia Logica what he consider his main professional concern.
Rafal Palczewski is Associate Professor of Philosophy in the Department of Logic, Nicolaus Copernicus University in Torun, Poland. He received Ph.D. and habilitation in Philosophy at Institute of Philosophy, Nicolaus Copernicus University in Torun. His research interests concern the borderline of logic, pragmatics and epistemology, in particular epistemic logic, epistemic contextualism, norms of assertion.