Copyright © 2007 by Julian Havil
Published by Princeton University Press,
41 William Street, Princeton, New Jersey 08540
In the United Kingdom: Princeton University Press,
6 Oxford Street, Woodstock, Oxfordshire OX20 1TW
press.princeton.edu
All Rights Reserved
Fourth printing, and first paperback printing, 2010
Paperback ISBN: 978-0-691-14822-9
The Library of Congress has catalogued the cloth edition of this book as follows
Havil, Julian, 1952-
Nonplussed! : mathematical proof of implausible ideas / Julian Havil.
p. cm.
Includes index.
ISBN-13: 978-0-691-12056-0 (acid-free paper)
ISBN-10: 0-691-12056-0 (acid-free paper)
1. Mathematics Miscellanea. 2. Mathematical recreations.
3. Paradox Mathematics. I. Title.
QA99.H38 2006
510 dc22 2006009994
British Library Cataloguing-in-Publication Data is available
This book has been composed in Lucida
Typeset by T&T Productions Ltd, London
Printed on acid-free paper ∞
Printed in the United States of America
5 7 9 10 8 6 4
18.188.91.44