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The Birth of Model Theory: L Wenheim's Theorem in the Frame of the Theory of Relativesby Calixto Badesa
Synopses & ReviewsPublisher Comments:Löwenheim's theorem reflects a critical point in the history of mathematical logic, for it marks the birth of model theorythat is, the part of logic that concerns the relationship between formal theories and their models. However, while the original proofs of other, comparably significant theorems are well understood, this is not the case with Löwenheim's theorem. For example, the very result that scholars attribute to Löwenheim today is not the one that Skolema logician raised in the algebraic tradition, like Löwenheimappears to have attributed to him. In The Birth of Model Theory, Calixto Badesa provides both the first sustained, booklength analysis of Löwenheim's proof and a detailed description of the theoretical frameworkand, in particular, of the algebraic traditionthat made the theorem possible.
Badesa's three main conclusions amount to a completely new interpretation of the proof, one that sharply contradicts the core of modern scholarship on the topic. First, Löwenheim did not use an infinitary language to prove his theorem; second, the functional interpretation of Löwenheim's normal form is anachronistic, and inappropriate for reconstructing the proof; and third, Löwenheim did not aim to prove the theorem's weakest version but the stronger version Skolem attributed to him. This book will be of considerable interest to historians of logic, logicians, philosophers of logic, and philosophers of mathematics. Synopsis:"A firstrate contribution to the history and philosophy of logic, this is scholarship at its best. It is, to my knowledge, the first book in the history of logic that focuses completely on a single result. Very original in approach and conception, it goes against the grain of much recent scholarship. Given the complexity of the subject, Badesa could not have done a better job of being clear and making the presentation accessible."Paolo Mancosu, University of California, Berkeley
"The Birth of Model Theory represents a long overdue, indepth analysis and exposition of one of the most important results in mathematical logic. There are hardly any informed, sustained treatments of Löwenheim's work to be found in the literature. This wellwritten book should fill this gap."Richard Zach, University of Calgary "This book will be extremely useful to those seeking to make sense of Löwenheim's work and those seeking to put it into its historical context. Calixto Badesa draws wellsupported conclusions that contradict the entire modern body of scholarship on the topic."Shaughan Lavine, University of Arizona Synopsis:Löwenheim's theorem reflects a critical point in the history of mathematical logic, for it marks the birth of model theorythat is, the part of logic that concerns the relationship between formal theories and their models. However, while the original proofs of other, comparably significant theorems are well understood, this is not the case with Löwenheim's theorem. For example, the very result that scholars attribute to Löwenheim today is not the one that Skolema logician raised in the algebraic tradition, like Löwenheimappears to have attributed to him. In The Birth of Model Theory, Calixto Badesa provides both the first sustained, booklength analysis of Löwenheim's proof and a detailed description of the theoretical frameworkand, in particular, of the algebraic traditionthat made the theorem possible.
Badesa's three main conclusions amount to a completely new interpretation of the proof, one that sharply contradicts the core of modern scholarship on the topic. First, Löwenheim did not use an infinitary language to prove his theorem; second, the functional interpretation of Löwenheim's normal form is anachronistic, and inappropriate for reconstructing the proof; and third, Löwenheim did not aim to prove the theorem's weakest version but the stronger version Skolem attributed to him. This book will be of considerable interest to historians of logic, logicians, philosophers of logic, and philosophers of mathematics. About the AuthorCalixto Badesa is Associate Professor of Logic and History of Logic at the University of Barcelona.
Table of ContentsPreface ix
Chapter 1. Algebra of Classes and Propositional Calculus 1 1.1 Boole 1 1.2 Jevons 10 1.3 Peirce 12 1.4 Schröder 17 Chapter 2. The Theory of Relatives 31 2.1 Introduction 31 2.2 Basic concepts of the theory of relatives 33 2.3 Basic postulates of the theory of relatives 40 2.4 Theory of relatives and model theory 51 2.5 Firstorder logic of relatives 66 Chapter 3. Changing the Order of Quantifiers 73 3.1 Schröder's proposal 73 3.2 Löwenheim's approach 81 3.3 The problem of expansions 87 3.4 Skolem functions 94 Chapter 4. The Löwenheim Normal Form 107 4.1 The Löwenheim normal form of an equation 107 4.2 Comments on Löwenheim's method 113 4.3 Conclusions 122 Chapter 5. Preliminaries to Löwenheim's Theorem 129 5.1 Indices and elements 129 5.2 Types of indices 132 5.3 Assignments 135 5.4 Types of equations 138 Chapter 6. Löwenheim's Theorem 143 6.1 The problem 143 6.2 An analysis of Löwenheim's proof 148 6.3 Reconstructing the proof 191 Appendix. FirstOrder Logic with Fleeing Indices 207 A.1 Introduction 207 A.2 Syntax 207 A.3 Semantics 211 A.4 The Löwenheim normal form 217 A.5 Löwenheim's theorem 220 References 227 Index 237 What Our Readers Are SayingBe the first to add a comment for a chance to win!Product Details
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