Collected Papers of Stig Kanger with Essays on his Life and Work Vol

Stig Kanger (1924-1988) made important contributions to logic and formal philosophy. Kanger's dissertation Provability in Logic, 1957, contained significant results in proof theory as well as the first fully worked out model-theoretic interpretation of qu

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SYNTHESE LIBRARY STUDIES IN EPISTEMOLOGY, LOGIC, METHODOLOGY, AND PHILOSOPHY OF SCIENCE

Managing Editor:

JAAKKO HINTIKKA, Boston University, U.S.A. Editors : DIRK VAN DALEN, University of Utrecht, The Netherlands DONALD DAVIDSON, University of California, Berkeley, U.S.A. THEO A.F. KUIPERS, University of Groningen, The Netherlands PATRICK SUPPES, Stanford University, California, U.S.A. JAN WOLENSKI, Jagiellonian University, Krakow. Poland

VOLUME 303

COLLECTED PAPERS OF STIG KANGER WITH ESSAYS ON HIS LIFE ANDWORK VoI. 1 Edited by

GHITA HOLMSTROM-HINTIKKA Boston University, Boston, USA.

STEN LINDSTROM Umea University, Umea, Sweden

and RYSIEK SLIWINSKI Uppsala University, Uppsala, Sweden

SPRINGER SCIENCE+BUSINESS MEDIA, B.V.

A C.I.P. Catalogue record for this book is available from the Library of Congress.

ISBN 978-1-4020-0022-5 ISBN 978-94-010-0500-5 (eBook) DOI 10.1007/978-94-010-0500-5

Printed on acid-free paper

Ali Rights Reserved © 2001 Springer Science+Business Media Dordrecht Originally published by Kluwer Academic Publishers in 2001 Softcover reprint of the hardcover 1st edition 200 1 No part of the material protected by this copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, inc1uding photocopying, recording or by any information storage and retrieval system, without written permission from the copyright owner.

TABLE OF CONTENTS

vii

Introduction PURE LOGIC A Note on Partial Postulate Sets for Propositional Logic Provability in Logic The Morning Star Paradox A Note on Quantification and Modalities On the Characterization of Modalities A Simplified Proof Method for Elementary Logic Equivalent Theories An Algebraic Logic Calculus Equational Calculi and Automatic Demonstration Entailment The Paradox of the Unexpected Hanging, Regained Again

3 8 42

52 54 58 65

70 76 82 94

APPLIED LOGIC : OBLIGATIONS, RIGHTS AND ACTION New Foundations for Ethical Theory Rights and Parliamentarism Law and Logic Some Aspects on the Concept of Influence On Realization of Human Rights Unavoidability Unavoidability . Appendix

99

120 146

170

179 186

192

APPLIED LOGIC : PREFERENCE AND CHOICE Preference Logic A Note on Preference-Logic Choice and Modality

199

209 211 v

vi

Choice Based on Preference Decision by Democratic Procedure

214 231

PHILOSOPHY OF SCIENCE Measurement: An Essay in Philosophy of Science The Notion of a Phoneme

239 274

Published Writings of Stig Kanger Index of Names Subject Index

279 285 289

Photo : Rune Kanger

Stig Kanger

INTRODUCTION

Stig Kanger ( 1924- 1988) made important contributions to logic and formal philosophy . Characteristic of Kanger as a philosopher was his firm conviction that philosophical problems can be clarified - and sometimes even solved - by means of exact logical and mathematical method s. His most substantial, and groundbreaking, contributions were in the areas of general proof theory, the semantics of modal and deontic logic, and the logical analysi s of the concept of rights. But he contributed signi