Lorenzen, Paul Formal logic / Paul Lorenzen ; translated from the German by Frederick J. Crosson - Dordrecht : D. Reidel Pub., 1965 - viii, 123 p. ; 23 cm. - Synthese library . Includes bibliographical references and index ISBN: f 32 Subjects--Topical Terms: PhilosophyLogic Dewey Class. No.: 164