Undecidable Theories

Undecidable Theories PDF Author: Alfred Tarski
Publisher: Elsevier
ISBN: 0444533788
Category : Decidability (Mathematical logic)
Languages : en
Pages : 109

Get Book Here

Book Description

Undecidable Theories

Undecidable Theories PDF Author: Alfred Tarski
Publisher: Elsevier
ISBN: 0444533788
Category : Decidability (Mathematical logic)
Languages : en
Pages : 109

Get Book Here

Book Description


Undecidable Theories

Undecidable Theories PDF Author: Alfred Tarski
Publisher: Dover Books on Mathematics
ISBN: 9780486477039
Category : Mathematics
Languages : en
Pages : 0

Get Book Here

Book Description
This well-known book by the famed logician consists of three treatises: A General Method in Proofs of Undecidability, Undecidability and Essential Undecidability in Mathematics, and Undecidability of the Elementary Theory of Groups. 1953 edition.

Undecidable Theories

Undecidable Theories PDF Author: Alfred Tarski
Publisher:
ISBN:
Category : Gödel's theorem
Languages : en
Pages : 120

Get Book Here

Book Description


Decidable Theories

Decidable Theories PDF Author: Dirk Siefkes
Publisher: Springer
ISBN: 3540362525
Category : Mathematics
Languages : en
Pages : 142

Get Book Here

Book Description


Undecidable Theories

Undecidable Theories PDF Author: Alfred Taski
Publisher:
ISBN:
Category :
Languages : en
Pages : 98

Get Book Here

Book Description


Decision Problems for Equational Theories of Relation Algebras

Decision Problems for Equational Theories of Relation Algebras PDF Author: H. Andréka
Publisher: American Mathematical Soc.
ISBN: 0821805959
Category : Mathematics
Languages : en
Pages : 146

Get Book Here

Book Description
"We prove that any variety of relation algebras which contains an algebra with infinitely many elements below the identity, or which contains the full group relation algebra on some infinite group (or on arbitrarily large finite groups), must have an undecidable equational theory. Then we construct an embedding of the lattice of all subsets of the natural numbers into the lattice of varieties of relation algebras such that the variety correlated with a set [italic capital]X of natural numbers has a decidable equational theory if and only if [italic capital]X is a decidable (i.e., recursive) set. Finally, we construct an example of an infinite, finitely generated, simple, representable relation algebra that has a decidable equational theory.'' -- Abstract.

The Theory of Models

The Theory of Models PDF Author: J.W. Addison
Publisher: Elsevier
ISBN: 1483275345
Category : Mathematics
Languages : en
Pages : 513

Get Book Here

Book Description
Studies in Logic and the Foundations of Mathematics: The Theory of Models covers the proceedings of the International Symposium on the Theory of Models, held at the University of California, Berkeley on June 25 to July 11, 1963. The book focuses on works devoted to the foundations of mathematics, generally known as "the theory of models." The selection first discusses the method of alternating chains, semantic construction of Lewis's systems S4 and S5, and continuous model theory. Concerns include ordered model theory, 2-valued model theory, semantics, sequents, axiomatization, formulas, axiomatic approach to hierarchies, alternating chains, and difference hierarchies. The text also ponders on Boolean notions extended to higher dimensions, elementary theories with models without automorphisms, and applications of the notions of forcing and generic sets. The manuscript takes a look at a hypothesis concerning the extension of finite relations and its verification for certain special cases, theories of functors and models, model-theoretic methods in the study of elementary logic, and extensions of relational structures. The text also reviews relatively categorical and normal theories, algebraic theories, categories, and functors, denumerable models of theories with extra predicates, and non-standard models for fragments of number theory. The selection is highly recommended for mathematicians and researchers interested in the theory of models.

Computability Theory

Computability Theory PDF Author: S. Barry Cooper
Publisher: CRC Press
ISBN: 1420057561
Category : Mathematics
Languages : en
Pages : 420

Get Book Here

Book Description
Computability theory originated with the seminal work of Gödel, Church, Turing, Kleene and Post in the 1930s. This theory includes a wide spectrum of topics, such as the theory of reducibilities and their degree structures, computably enumerable sets and their automorphisms, and subrecursive hierarchy classifications. Recent work in computability theory has focused on Turing definability and promises to have far-reaching mathematical, scientific, and philosophical consequences. Written by a leading researcher, Computability Theory provides a concise, comprehensive, and authoritative introduction to contemporary computability theory, techniques, and results. The basic concepts and techniques of computability theory are placed in their historical, philosophical and logical context. This presentation is characterized by an unusual breadth of coverage and the inclusion of advanced topics not to be found elsewhere in the literature at this level. The book includes both the standard material for a first course in computability and more advanced looks at degree structures, forcing, priority methods, and determinacy. The final chapter explores a variety of computability applications to mathematics and science. Computability Theory is an invaluable text, reference, and guide to the direction of current research in the field. Nowhere else will you find the techniques and results of this beautiful and basic subject brought alive in such an approachable and lively way.

Uncertainty and Undecidability in Twentieth-Century Literature and Literary Theory

Uncertainty and Undecidability in Twentieth-Century Literature and Literary Theory PDF Author: Mette Leonard Høeg
Publisher: Taylor & Francis
ISBN: 1000568547
Category : Literary Criticism
Languages : en
Pages : 347

Get Book Here

Book Description
Undecidability is a fundamental quality of literature and constitutive of what renders some works appealing and engaging across time and in different contexts. This book explores the essential literary notion and its role, function and effect in late nineteenth- and twentieth-century literature and literary theory. The book traces the notion historically, providing a map of central theories addressing interpretative challenges and recalcitrance in literature and showing ‘theory of uncertainty’ to be an essential strand of literary theory. While uncertainty is present in all literature, and indeed a prerequisite for any stabilisation of meaning, the Modernist period is characterised by a particularly strong awareness of uncertainty and its subforms of undecidability, ambiguity, indeterminacy, etc. With examples from seminal Modernist works by Woolf, Proust, Ford, Kafka and Musil, the book sheds light on undecidability as a central structuring principle and guiding philosophical idea in twentieth-century literature and demonstrates the analytical value of undecidability as a critical concept and reading-strategy. Defining undecidability as a specific ‘sustained’ and ‘productive’ kind of uncertainty and distinguishing it from related forms, such as ambiguity, indeterminacy and indistinction, the book develops a systematic but flexible theory of undecidability and outlines a productive reading-strategy based on the recognition of textual and interpretive undecidability.

A Formalization of Set Theory without Variables

A Formalization of Set Theory without Variables PDF Author: Alfred Tarski
Publisher: American Mathematical Soc.
ISBN: 0821810413
Category : Mathematics
Languages : en
Pages : 342

Get Book Here

Book Description
Culminates nearly half a century of the late Alfred Tarski's foundational studies in logic, mathematics, and the philosophy of science. This work shows that set theory and number theory can be developed within the framework of a new, different and simple equational formalism, closely related to the formalism of the theory of relation algebras.