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Propositional and Predicate Calculus: A Model
of Argument
Derek Goldrei
Propositional and
Predicate Calculus
A Model of Argument
123
Derek Goldrei, MA, MSc
Open University
Milton Keynes
UK
Mathematics Subject Classifi cation (2000): 03B05, 03B10,03C07
British Library Cataloguing in Publication Data
Goldrei, Derek
Propositional and predicate calculus: a model of argument
1. Propositional calculus 2. Predicate calculus
I.Title
511.3
ISBN 1852339217
Library of Congress Cataloging-in-Publication Data
Goldrei, Derek.
Propositional and predicate calculus: a model of argument/Derek Goldrei.
p.cm.
Includes bibliographical references and index.
ISBN 1-85233-921-7 (acid-free paper)
1. Propositional calculus. 2. Predicate calculus. I. Title.
QA9.3.G65 2005
511.3--dc22
2005040219
Apart from any fair dealing for the purposes of research or private study, or criticism or review, as
permitted under the Copyright, Designs and Patents Act 1988, this publication may only be reproduced,
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publishers, or in the case of reprographic reproduction in accordance with the terms of licences issued
by the Copyright Licensing Agency. Enquiries concerning reproduction outside those terms should be
sent to the publishers.
ISBN-10: 1-85233-921-7
ISBN-13: 978-1-85233-921-0
Springer Science+Business Media
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© Springer-Verlag London Limited 2005
The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of
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PREFACE
How to Use This Book
This book is intended to be used by you for independent study, with no other
reading or lectures etc., much along the lines of standard Open University
materials. There are plenty of exercises within the text which we would rec-
ommend you to attempt at that stage of your work. Almost all are intended
to be reasonably straightforward on the basis of what’s come before and many
are accompanied by solutions – it’s worth reading these solutions as they of-
ten contain further teaching, but do try the exercises first without peeking,
to help you to engage with the material. Those exercises without solutions
might well be very suitable for any tutor to whom you have access to use as
the basis for any continuous assessment of this material, to help you check
that you are making reasonable progress. But beware! Some of the exercises
pose questions for which there is not always a clear-cut answer: these are
intended to provoke debate! In addition there are further exercises located at The book is also peppered with
notes in the margins, like this!
They consist of comments meant to
be on the fringe of the main text,
rather than the core of the
teaching, for instance reminders
about ideas from earlier in the
book or particularly subjective
opinions of the author.
If you would like any further reading in logic textbooks, there are plenty of
good books available which use essentially the same system, for instance those
by Enderton [12], Hamilton [18], Mendelson [25] and Cori and Lascar [7].
this book. My enthusiasm for the subject was fuelled by Robin Gandy, Paul
Bacsich, Jane Bridge, Angus Macintyre and Harold Simmons, when I stud-
ied at the Universities of Oxford and Aberdeen. Anything worthwhile I have
successfully learnt about teaching stems from my colleagues at the Open Uni-
versity and the network of mathematicians throughout the UK who support
the Open University by working as Associate Lecturers, external assessors and
examiners. They have taught me so much. It has been particularly stimu-
lating writing this book alongside producing the Open University’s course on
Mathematical Logic (with a very different angle on the subject) with Alan
Pears, Alan Slomson, Alex Wilkie, Mary Jones, Roger Lowry, Jeff Paris and
Frances Williams. And it is a privilege to be part of a university which puts
so much care and effort into its teaching and the support of its students. The
practicalities of producing this book owe much to my publishers, Stephanie
Harding and Karen Borthwick at Springer; and to my colleagues at the Open
University who have done so much to provide me with a robust and attrac-
tive L a T E X system: Alison Cadle, David Clover, Jonathan Fine, Bob Margolis
and Chris Rowley. And thanks to Springer, I have received much invaluable
advice on content from their copy-editor Stuart Gale and their anonymous,
v
the end of most sections. These vary from further routine practice to rather
hard problems: it’s well worth reading through these exercises, even if you
don’t attempt them, as they often give an idea of some important ideas or
results not in the earlier text. Again your tutor, if you have one, can guide
you through these.
Acknowledgments
I would like to thank all those who have in some way helped me to write Plainly the blame for any errors
and inadequacies of this book lies
entirely with me. But perhaps at
some deep and subtle level, the
fault lies with everyone else!
Preface
very collegial, reviewers. I would also like to thank Michael Goldrei for his
work on the cover design.
Perhaps the main inspiration for writing the book is the enthusiasm and talent
for mathematical logic displayed by my old students at the Open University
and at the University of Oxford, especially those of Somerville, St. Hugh’s and
Mansfield Colleges. In particular I’d like to thank the following for their com-
ments on parts of the book: Dimitris Azanias, David Blower, Duncan Blythe,
Rosa Clements, Rhodri Davies, David Elston, Michael Hopley, Gerrard Jones,
Eleni Kanellopoulou, Jakob Macke, Zelin Ozturk, Nicholas Thapen, Matt
Towers, Chris Wall, Garth Wilkinson, Rufus Willett and especially Margaret
Thomas.
This book is dedicated to all those whose arguments win me over, especially
Jennie, Michael, Judith and Irena.
vi
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