Ian Chiswell and Wilfrid Hodges

Mathematical Logic

(paper)
ISBN-10: 0-19-921562-6
ISBN-13: 978-0-19-921562-1
Estimated publication date: May 2007
296 pages, 240x168 mm
Series: Oxford Texts in Logic number 3

Description

Based on the authors' extensive teaching on the subject
Practical examples are given for each idea as it is introduced
Methods and concepts are introduced intuitively in terms of actual mathematical practice, but then developed rigorously
Extensive exercises are presented along with selected solutions

Assuming no previous study in logic, this informal yet rigorous text covers the material of a standard undergraduate first course in mathematical logic, using natural deduction and leading up to the completeness theorem for first-order logic. At each stage of the text, the reader is given an intuition based on standard mathematical practice, which is subsequently developed with clean formal mathematics. Alongside the practical examples, readers learn what can and can't be calculated; for example the correctness of a derivation proving a given sequent can be tested mechanically, but there is no general mechanical test for the existence of a derivation proving the given sequent. The undecidability results are proved rigorously in an optional final chapter, assuming Matiyasevich's theorem characterising the computably enumerable relations. Rigorous proofs of the adequacy and completeness proofs of the relevant logics are provided, with careful attention to the languages involved. Optional sections discuss the classification of mathematical structures by first-order theories; the required theory of cardinality is developed from scratch. Throughout the book there are notes on historical aspects of the material, and connections with linguistics and computer science, and the discussion of syntax and semantics is influenced by modern linguistic approaches. Two basic themes in recent cognitive science studies of actual human reasoning are also introduced. Including extensive exercises and selected solutions, this text is ideal for students in Logic, Mathematics, Philosophy, and Computer Science.

Readership: Undergraduate students in Logic, Mathematics, Philosophy, and Computer Science

Marcus Giaquinto

Visual Thinking in Mathematics

(Hardback)
ISBN-10: 0-19-928594-2
ISBN-13: 978-0-19-928594-5
Estimated publication date: May 2007
240 pages, 20 diagrams, 234x156 mm

Description

Original work on a fascinating topic
Multi-disciplinary approach; draws on the latest research in cognitive science, psychology, mathematics education, and philosophy
Wide range of mathematical examples from geometry, algebra, arithmetic, and real analysis
Offers solutions to long-standing philosophical problems

Visual thinking - visual imagination or perception of diagrams and symbol arrays, and mental operations on them - is omnipresent in mathematics. Is this visual thinking merely a psychological aid, facilitating grasp of what is gathered by other means? Or does it also have epistemological functions, as a means of discovery, understanding, and even proof? By examining the many kinds of visual representation in mathematics and the diverse ways in which they are used, Marcus Giaquinto argues that visual thinking in mathematics is rarely just a superfluous aid; it usually has epistemological value, often as a means of discovery. Drawing from philosophical work on the nature of concepts and from empirical studies of visual perception, mental imagery, and numerical cognition, Giaquinto explores a major source of our grasp of mathematics, using examples from basic geometry, arithmetic, algebra, and real analysis. He shows how we can discern abstract general truths by means of specific images, how synthetic a priori knowledge is possible, and how visual means can help us grasp abstract structures.

Visual Thinking in Mathematics reopens the investigation of earlier thinkers from Plato to Kant into the nature and epistemology of an individual's basic mathematical beliefs and abilities, in the new light shed by the maturing cognitive sciences. Clear and concise throughout, it will appeal to scholars and students of philosophy, mathematics, and psychology, as well as anyone with an interest in mathematical thinking.

Readership: Scholars and advanced students of philosophy, mathematics, and psychology. Anyone with an interest in the role of visual thinking in mathematical thought.

Contents

1. Introduction
2. Simple Shapes: Vision and Concepts
3. Basic Geometrical Knowledge
4. Geometrical Discovery by Visualizing
5. Diagrams in Geometric Proofs
6. Mental Number Lines
7. Visual Aspects of Calculation
8. General Theorems from Specific Images
9. Visual Thinking in Basic Analysis
10. Symbol Manipulation
11. Cognition of Structure
12. Mathematical Thinking: Algebraic v. Geometric?

Edited by Alessio Corti

Flips for 3-folds and 4-folds

(hardback)
ISBN-10: 0-19-857061-9
ISBN-13: 978-0-19-857061-5
Estimated publication date: June 2007
184 pages, 234x156 mm
Series: Oxford Lecture Series in Mathematics and Its Applications number 35

Description

Highly significant mathematical work
Authored by leading researchers in the field
Provides a complete account of the construction of 3-fold and 4-fold klt flips
Presents the work of Shokurov on 3-fold flips in a more accessible manner
10-page glossary provided

This edited collection of chapters, authored by leading experts, provides a complete and essentially self-contained construction of 3-fold and 4-fold klt flips. A large part of the text is a digest of Shokurov's work in the field and a concise, complete and pedagogical proof of the existence of 3-fold flips is presented. The text includes a ten page glossary and is accessible to students and researchers in algebraic geometry.

Readership: Graduates and researchers in algebraic geometry