Canonical Equational Proofs

Canonical Equational Proofs PDF Author: Bachmair
Publisher: Springer Science & Business Media
ISBN: 146847118X
Category : Mathematics
Languages : en
Pages : 142

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Book Description
Equations occur in many computer applications, such as symbolic compu tation, functional programming, abstract data type specifications, program verification, program synthesis, and automated theorem proving. Rewrite systems are directed equations used to compute by replacing subterms in a given formula by equal terms until a simplest form possible, called a normal form, is obtained. The theory of rewriting is concerned with the compu tation of normal forms. We shall study the use of rewrite techniques for reasoning about equations. Reasoning about equations may, for instance, involve deciding whether an equation is a logical consequence of a given set of equational axioms. Convergent rewrite systems are those for which the rewriting process de fines unique normal forms. They can be thought of as non-deterministic functional programs and provide reasonably efficient decision procedures for the underlying equational theories. The Knuth-Bendix completion method provides a means of testing for convergence and can often be used to con struct convergent rewrite systems from non-convergent ones. We develop a proof-theoretic framework for studying completion and related rewrite based proof procedures. We shall view theorem provers as proof transformation procedures, so as to express their essential properties as proof normalization theorems.

Canonical Equational Proofs

Canonical Equational Proofs PDF Author: Bachmair
Publisher: Springer Science & Business Media
ISBN: 146847118X
Category : Mathematics
Languages : en
Pages : 142

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Book Description
Equations occur in many computer applications, such as symbolic compu tation, functional programming, abstract data type specifications, program verification, program synthesis, and automated theorem proving. Rewrite systems are directed equations used to compute by replacing subterms in a given formula by equal terms until a simplest form possible, called a normal form, is obtained. The theory of rewriting is concerned with the compu tation of normal forms. We shall study the use of rewrite techniques for reasoning about equations. Reasoning about equations may, for instance, involve deciding whether an equation is a logical consequence of a given set of equational axioms. Convergent rewrite systems are those for which the rewriting process de fines unique normal forms. They can be thought of as non-deterministic functional programs and provide reasonably efficient decision procedures for the underlying equational theories. The Knuth-Bendix completion method provides a means of testing for convergence and can often be used to con struct convergent rewrite systems from non-convergent ones. We develop a proof-theoretic framework for studying completion and related rewrite based proof procedures. We shall view theorem provers as proof transformation procedures, so as to express their essential properties as proof normalization theorems.

Theory of Stochastic Canonical Equations

Theory of Stochastic Canonical Equations PDF Author: Vi︠a︡cheslav Leonidovich Girko
Publisher: Springer Science & Business Media
ISBN: 9781402000744
Category : Mathematics
Languages : en
Pages : 496

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Book Description


Proof and Computation

Proof and Computation PDF Author: Helmut Schwichtenberg
Publisher: Springer Science & Business Media
ISBN: 3642793614
Category : Computers
Languages : en
Pages : 478

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Book Description
Logical concepts and methods are of growing importance in many areas of computer science. The proofs-as-programs paradigm and the wide acceptance of Prolog show this clearly. The logical notion of a formal proof in various constructive systems can be viewed as a very explicit way to describe a computation procedure. Also conversely, the development of logical systems has been influenced by accumulating knowledge on rewriting and unification techniques. This volume contains a series of lectures by leading researchers giving a presentation of new ideas on the impact of the concept of a formal proof on computation theory. The subjects covered are: specification and abstract data types, proving techniques, constructive methods, linear logic, and concurrency and logic.

Solving Higher-Order Equations

Solving Higher-Order Equations PDF Author: Christian Prehofer
Publisher: Springer Science & Business Media
ISBN: 9780817640323
Category : Computers
Languages : en
Pages : 208

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Book Description
This monograph develops techniques for equational reasoning in higher-order logic. Due to its expressiveness, higher-order logic is used for specification and verification of hardware, software, and mathematics. In these applica tions, higher-order logic provides the necessary level of abstraction for con cise and natural formulations. The main assets of higher-order logic are quan tification over functions or predicates and its abstraction mechanism. These allow one to represent quantification in formulas and other variable-binding constructs. In this book, we focus on equational logic as a fundamental and natural concept in computer science and mathematics. We present calculi for equa tional reasoning modulo higher-order equations presented as rewrite rules. This is followed by a systematic development from general equational rea soning towards effective calculi for declarative programming in higher-order logic and A-calculus. This aims at integrating and generalizing declarative programming models such as functional and logic programming. In these two prominent declarative computation models we can view a program as a logical theory and a computation as a deduction.

Computational Logic and Proof Theory

Computational Logic and Proof Theory PDF Author: Georg Gottlob
Publisher: Springer Science & Business Media
ISBN: 9783540633853
Category : Computers
Languages : en
Pages : 364

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Book Description
This book constitutes the refereed proceedings of the 5th Kurt Gödel Colloquium on Computational Logic and Proof Theory, KGC '97, held in Vienna, Austria, in August 1997. The volume presents 20 revised full papers selected from 38 submitted papers. Also included are seven invited contributions by leading experts in the area. The book documents interdisciplinary work done in the area of computer science and mathematical logics by combining research on provability, analysis of proofs, proof search, and complexity.

Theory of Stochastic Canonical Equations

Theory of Stochastic Canonical Equations PDF Author: V.L. Girko
Publisher: Springer Science & Business Media
ISBN: 9401009899
Category : Mathematics
Languages : en
Pages : 1010

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Book Description
Theory of Stochastic Canonical Equations collects the major results of thirty years of the author's work in the creation of the theory of stochastic canonical equations. It is the first book to completely explore this theory and to provide the necessary tools for dealing with these equations. Included are limit phenomena of sequences of random matrices and the asymptotic properties of the eigenvalues of such matrices. The book is especially interesting since it gives readers a chance to study proofs written by the mathematician who discovered them. All fifty-nine canonical equations are derived and explored along with their applications in such diverse fields as probability and statistics, economics and finance, statistical physics, quantum mechanics, control theory, cryptography, and communications networks. Some of these equations were first published in Russian in 1988 in the book Spectral Theory of Random Matrices, published by Nauka Science, Moscow. An understanding of the structure of random eigenvalues and eigenvectors is central to random matrices and their applications. Random matrix analysis uses a broad spectrum of other parts of mathematics, linear algebra, geometry, analysis, statistical physics, combinatories, and so forth. In return, random matrix theory is one of the chief tools of modern statistics, to the extent that at times the interface between matrix analysis and statistics is notably blurred. Volume I of Theory of Stochastic Canonical Equations discusses the key canonical equations in advanced random matrix analysis. Volume II turns its attention to a broad discussion of some concrete examples of matrices. It contains in-depth discussion of modern, highly-specialized topics in matrix analysis, such as unitary random matrices and Jacoby random matrices. The book is intended for a variety of readers: students, engineers, statisticians, economists and others.

Handbook of Automated Reasoning

Handbook of Automated Reasoning PDF Author: Alan J.A. Robinson
Publisher: Gulf Professional Publishing
ISBN: 9780444829498
Category : Computers
Languages : en
Pages : 1004

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Book Description
Handbook of Automated Reasoning.

Hydrologic Optics

Hydrologic Optics PDF Author: Rudolph W. Preisendorfer
Publisher:
ISBN:
Category : Optical oceanography
Languages : en
Pages : 946

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Book Description


Hydrologic Optics: Properties

Hydrologic Optics: Properties PDF Author: Rudolph W. Preisendorfer
Publisher:
ISBN:
Category : Optical oceanography
Languages : en
Pages : 320

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Book Description


Constraints in Computational Logics. Theory and Applications

Constraints in Computational Logics. Theory and Applications PDF Author: Hubert Comon
Publisher: Springer Science & Business Media
ISBN: 3540419500
Category : Computers
Languages : en
Pages : 321

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Book Description
Constraints and constraint solving : an introduction / Jean-Pierre Jouannaud / - Constraint solving on terms / Hubert Comon / - Combining constraint solving / Franz Baader / - Constraints and theorem proving / Harald Ganzinger / - Functional and constraint logic programming / Mario Rodríguez-Artalejo / - Building industrial applications with constraint programming / Helmut Simonis.