Download or read book V rification de circuits dans Coq written by Line Jakubiec and published by . This book was released on 1999 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA VERIFICATION FORMELLE DE CIRCUITS INTEGRES GARANTIT DE FACON RIGOUREUSE LEUR FIABILITE. POUR CE FAIRE, LES ASSISTANTS DE PREUVE SONT DE PLUS EN PLUS UTILISES. LE SYSTEME COQ, BASE SUR LE CALCUL DES CONSTRUCTIONS INDUCTIVES AVEC TYPES CO-INDUCTIFS, PRESENTE DES PARTICULARITES INTERESSANTES ET ORIGINALES. NOUS ETUDIONS CE QUE CE SYSTEME PEUT APPORTER DANS LE DOMAINE DE LA SPECIFICATION ET DE LA VERIFICATION DE CIRCUITS. APRES AVOIR MONTRE L'INTERET DES TYPES DEPENDANTS POUR DONNER DES SPECIFICATIONS DE CIRCUITS PRECISES ET DONC FIABLES, NOUS UTILISONS LE MECANISME D'EXTRACTION COQ POUR SYNTHETISER UN CIRCUIT CORRECT PAR CONSTRUCTION. NOUS ILLUSTRONS CES ASPECTS SUR DES CIRCUITS COMBINATOIRES DONT L'ARCHITECTURE EST LINEAIRE ET NOUS ETUDIONS SUR CET EXEMPLE LES DIVERSES STRATEGIES DE PREUVE QU'OFFRE COQ. NOTRE ETUDE PORTE ENSUITE SUR LES CIRCUITS SEQUENTIELS SYNCHRONES SPECIFIES A L'AIDE DE TYPES CO-INDUCTIFS. CES TYPES PERMETTENT DE DEFINIR EN COQ DES OBJETS INFINIS COMME LES STREAMS. LES STRUCTURES ET LES COMPORTEMENTS DES CIRCUITS SONT MODELISES DE FACON UNIFORME PAR DES AUTOMATES, EUX-MEMES CARACTERISES PAR DES FONCTIONS CO-RECURSIVES SUR LES STREAMS. NOTRE APPROCHE EST HIERARCHIQUE ET MODULAIRE ET REPOSE SUR UN LEMME GENERAL QUI EXPRIME UNE EQUIVALENCE ENTRE DEUX STREAMS ISSUES RESPECTIVEMENT DE DEUX AUTOMATES. CE LEMME PREND EN COMPTE L'ESSENTIEL DE L'ASPECT TEMPOREL DE NOS PREUVES DE CORRECTION. NOUS APPLIQUONS ENSUITE CETTE METHODOLOGIE A UN CIRCUIT REEL, LE FAIRISLE ATM SWITCH ELEMENT.

Download or read book Theorem Proving in Higher Order Logics written by and published by . This book was released on 1998 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Theorem Proving in Higher Order Logics written by Joakim von Wright and published by Springer. This book was released on 1996-08-07 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 9th International Conference on Theorem Proving in Higher Order Logics, TPHOL '96, held in Turku, Finland, in August 1996. The 27 revised full papers included together with one invited paper were carefully selected from a total of 46 submissions. The topics addressed are theorem proving technology, proof automation and decision procedures, mechanized theorem proving, extensions of higher order logics, integration of external tools, novel applications, and others. All in all, the volume is an up-to-date report on the state of the art in this increasingly active field.

Download or read book Embedded System Applications written by Jean-Claude Baron and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: Embedded systems encompass a variety of hardware and software components which perform specific functions in host systems, for example, satellites, washing machines, hand-held telephones and automobiles. Embedded systems have become increasingly digital with a non-digital periphery (analog power) and therefore, both hardware and software codesign are relevant. The vast majority of computers manufactured are used in such systems. They are called `embedded' to distinguish them from standard mainframes, workstations, and PCs. Athough the design of embedded systems has been used in industrial practice for decades, the systematic design of such systems has only recently gained increased attention. Advances in microelectronics have made possible applications that would have been impossible without an embedded system design. Embedded System Applications describes the latest techniques for embedded system design in a variety of applications. This also includes some of the latest software tools for embedded system design. Applications of embedded system design in avionics, satellites, radio astronomy, space and control systems are illustrated in separate chapters. Finally, the book contains chapters related to industrial best-practice in embedded system design. Embedded System Applications will be of interest to researchers and designers working in the design of embedded systems for industrial applications.

Download or read book Program Verification written by Timothy T.R. Colburn and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the most important problems confronting computer science is that of developing a paradigm appropriate to the discipline. Proponents of formal methods - such as John McCarthy, C.A.R. Hoare, and Edgar Dijkstra - have advanced the position that computing is a mathematical activity and that computer science should model itself after mathematics. Opponents of formal methods - by contrast, suggest that programming is the activity which is fundamental to computer science and that there are important differences that distinguish it from mathematics, which therefore cannot provide a suitable paradigm. Disagreement over the place of formal methods in computer science has recently arisen in the form of renewed interest in the nature and capacity of program verification as a method for establishing the reliability of software systems. A paper that appeared in Communications of the ACM entitled, `Program Verification: The Very Idea', by James H. Fetzer triggered an extended debate that has been discussed in several journals and that has endured for several years, engaging the interest of computer scientists (both theoretical and applied) and of other thinkers from a wide range of backgrounds who want to understand computer science as a domain of inquiry. The editors of this collection have brought together many of the most interesting and important studies that contribute to answering questions about the nature and the limits of computer science. These include early papers advocating the mathematical paradigm by McCarthy, Naur, R. Floyd, and Hoare (in Part I), others that elaborate the paradigm by Hoare, Meyer, Naur, and Scherlis and Scott (in Part II), challenges, limits and alternatives explored by C. Floyd, Smith, Blum, and Naur (in Part III), and recent work focusing on formal verification by DeMillo, Lipton, and Perlis, Fetzer, Cohn, and Colburn (in Part IV). It provides essential resources for further study. This volume will appeal to scientists, philosophers, and laypersons who want to understand the theoretical foundations of computer science and be appropriately positioned to evaluate the scope and limits of the discipline.

Download or read book Rewriting Computation and Proof written by Hubert Comon-Lundh and published by Springer Science & Business Media. This book was released on 2007-06-22 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Jean-Pierre Jouannaud has played a leading role in the field of rewriting and its technology. This Festschrift volume, published to honor him on his 60th Birthday, includes 13 refereed papers by leading researchers, current and former colleagues. The papers are grouped in thematic sections on Rewriting Foundations, Proof and Computation, and a final section entitled Towards Safety and Security.

Download or read book The Seventeen Provers of the World written by Freek Wiedijk and published by Springer Science & Business Media. This book was released on 2006-02-03 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commemorating the 50th anniversary of the first time a mathematical theorem was proven by a computer system, Freek Wiedijk initiated the present book in 2004 by inviting formalizations of a proof of the irrationality of the square root of two from scientists using various theorem proving systems. The 17 systems included in this volume are among the most relevant ones for the formalization of mathematics. The systems are showcased by presentation of the formalized proof and a description in the form of answers to a standard questionnaire. The 17 systems presented are HOL, Mizar, PVS, Coq, Otter/Ivy, Isabelle/Isar, Alfa/Agda, ACL2, PhoX, IMPS, Metamath, Theorema, Leog, Nuprl, Omega, B method, and Minlog.

Download or read book Deductive Software Verification The KeY Book written by Wolfgang Ahrendt and published by Springer. This book was released on 2016-12-19 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Static analysis of software with deductive methods is a highly dynamic field of research on the verge of becoming a mainstream technology in software engineering. It consists of a large portfolio of - mostly fully automated - analyses: formal verification, test generation, security analysis, visualization, and debugging. All of them are realized in the state-of-art deductive verification framework KeY. This book is the definitive guide to KeY that lets you explore the full potential of deductive software verification in practice. It contains the complete theory behind KeY for active researchers who want to understand it in depth or use it in their own work. But the book also features fully self-contained chapters on the Java Modeling Language and on Using KeY that require nothing else than familiarity with Java. All other chapters are accessible for graduate students (M.Sc. level and beyond). The KeY framework is free and open software, downloadable from the book companion website which contains also all code examples mentioned in this book.

Download or read book INIS Atomindex written by and published by . This book was released on 1978 with total page 1658 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distinction written by Pierre Bourdieu and published by Routledge. This book was released on 2013-04-15 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines differences in taste between modern French classes, discusses the relationship between culture and politics, and outlines the strategies of pretension.

Download or read book Concrete Semantics written by Tobias Nipkow and published by Springer. This book was released on 2014-12-03 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Part I of this book is a practical introduction to working with the Isabelle proof assistant. It teaches you how to write functional programs and inductive definitions and how to prove properties about them in Isabelle’s structured proof language. Part II is an introduction to the semantics of imperative languages with an emphasis on applications like compilers and program analysers. The distinguishing feature is that all the mathematics has been formalised in Isabelle and much of it is executable. Part I focusses on the details of proofs in Isabelle; Part II can be read even without familiarity with Isabelle’s proof language, all proofs are described in detail but informally. The book teaches the reader the art of precise logical reasoning and the practical use of a proof assistant as a surgical tool for formal proofs about computer science artefacts. In this sense it represents a formal approach to computer science, not just semantics. The Isabelle formalisation, including the proofs and accompanying slides, are freely available online, and the book is suitable for graduate students, advanced undergraduate students, and researchers in theoretical computer science and logic.

Download or read book Data Refinement written by W.-P. de Roever and published by Cambridge University Press. This book was released on 1998-12-03 with total page 439 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this book is to provide a comprehensive and systematic introduction to the important and highly applicable method of data refinement and the simulation methods used for proving its correctness. The authors concentrate in the first part on the general principles needed to prove data refinement correct. They begin with an explanation of the fundamental notions, showing that data refinement proofs reduce to proving simulation. The book's second part contains a detailed survey of important methods in this field, which are carefully analysed, and shown to be either incomplete, with counterexamples to their application, or to be always applicable whenever data refinement holds. This is shown by proving, for the first time, that all these methods can be described and analysed in terms of two simple notions: forward and backward simulation. The book is self-contained, going from advanced undergraduate level and taking the reader to the state of the art in methods for proving simulation.

Download or read book Memoirs of a Computer Pioneer written by Maurice Vincent Wilkes and published by MIT Press (MA). This book was released on 1985 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Maurice Wilkes was one of the leading scientific explorers in the development of the modern digital computer. He directed the Mathematical Laboratory (later named the Computer Laboratory) at Cambridge University, where he and his team built the EDSAC, the first stored program digital computer to go into service. Wilkes describes in nontechnical detail the growth of EDSAC and its successor, EDSAC 2, his introduction of microprogramming, and the first experiments with time-sharing systems. In the 1950s, when machines were still getting larger rather than smaller, Wilkes was one of the few who foresaw a time when nonspecialists would be using computers almost universally, and he reviews his anticipatory efforts to develop simple programming systems. But his book is more than a history of computing, it also recounts the allied scientific effort when he was one of those scientists and engineers ("boffins" as they were called by the RAF) who were in the thick of it, his electronics skills enlisted in the new and exciting development of radar. In this absorbing autobiography, Wilkes is as concerned with people and places as he is with computer components and programs of development. He deftly sketches his childhood in the English midlands and his student days at Cambridge where he studied mathematical physics, and his boyhood fascination with radio matured. He conveys the excitement of sudden insights and long-sought breakthroughs against life's simpler pleasures and trials. His account brims with assessments and anecdotes of such contemporaries as Turing, Hartree, von Neumann, Aiken, and a dozen others. And with his impressions of America and Germany formed during his scientific journeys.

Download or read book Foundations of Secure Computation written by Friedrich L. Bauer and published by IOS Press. This book was released on 2000 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: The final quarter of the 20th century has seen the establishment of a global computational infrastructure. This and the advent of programming languages such as Java, supporting mobile distributed computing, has posed a significant challenge to computer sciences. The infrastructure can support commerce, medicine and government, but only if communications and computing can be secured against catastrophic failure and malicious interference.

Download or read book Certified Programming with Dependent Types written by Adam Chlipala and published by MIT Press. This book was released on 2013-12-06 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: A handbook to the Coq software for writing and checking mathematical proofs, with a practical engineering focus. The technology of mechanized program verification can play a supporting role in many kinds of research projects in computer science, and related tools for formal proof-checking are seeing increasing adoption in mathematics and engineering. This book provides an introduction to the Coq software for writing and checking mathematical proofs. It takes a practical engineering focus throughout, emphasizing techniques that will help users to build, understand, and maintain large Coq developments and minimize the cost of code change over time. Two topics, rarely discussed elsewhere, are covered in detail: effective dependently typed programming (making productive use of a feature at the heart of the Coq system) and construction of domain-specific proof tactics. Almost every subject covered is also relevant to interactive computer theorem proving in general, not just program verification, demonstrated through examples of verified programs applied in many different sorts of formalizations. The book develops a unique automated proof style and applies it throughout; even experienced Coq users may benefit from reading about basic Coq concepts from this novel perspective. The book also offers a library of tactics, or programs that find proofs, designed for use with examples in the book. Readers will acquire the necessary skills to reimplement these tactics in other settings by the end of the book. All of the code appearing in the book is freely available online.

Download or read book CENELEC 50128 and IEC 62279 Standards written by Jean-Louis Boulanger and published by John Wiley & Sons. This book was released on 2015-03-24 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: CENELEC EN 50128 and IEC 62279 standards are applicable to the performance of software in the railway sector. The 2011 version of the 50128 standard firms up the techniques and methods to be implemented. This is a guide to its implementation, in order to understand the foundations of the standard and how it impacts on the activities to be undertaken, helping towards better a preparation for the independent evaluation phase, which is mandatory.

Download or read book Formal Methods Applied to Complex Systems written by Jean-Louis Boulanger and published by John Wiley & Sons. This book was released on 2014-07-22 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents real-world examples of formal techniques in an industrial context. It covers formal methods such as SCADE and/or the B Method, in various fields such as railways, aeronautics, and the automotive industry. The purpose of this book is to present a summary of experience on the use of “formal methods” (based on formal techniques such as proof, abstract interpretation and model-checking) in industrial examples of complex systems, based on the experience of people currently involved in the creation and assessment of safety critical system software. The involvement of people from within the industry allows the authors to avoid the usual confidentiality problems which can arise and thus enables them to supply new useful information (photos, architecture plans, real examples, etc.).