Logical Models of Legal Argumentation

Logical Models of Legal Argumentation

Author: H. Prakken

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 215

ISBN-13: 9401156689

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In the study of forms of legal reasoning, logic and argumentation theory long followed separate tracks. `Legal logicians' tended to focus on a deductive reconstruction of justifying a decision, disregarding the dialectical process leading to the chosen justification. Others instead emphasized the adversarial and discretionary nature of legal reasoning, involving reasonable evaluation of alternative choices, and the use of analogical reasoning. Recently, however, developments in Artificial Intelligence and Law have paved the way for overcoming this separation. Logic has widened its scope to defensible argumentation, and informal accounts of analogy and dialectics have inspired the construction of computer programs. Thus the prospect is emerging of an integrated logical and dialectical account of legal argument, adding to the understanding of legal reasoning, and providing a formal basis for computer tools that assist and mediate legal debates while leaving room for human initiative. This book presents contributions to this development. From a logical point of view it covers topics such as evaluating conflicting arguments, weighing reasons, modelling legal disputes as a dialogue game, the role of the burden of proof, the relation between principles, rules, reasons and facts, and the relation between deductive and nondeductive arguments. Written by leading scholars in the field and building on recent developments in logic and Artificial Intelligence, the chapters provide a state-of-the-art account of research on the logical aspects of legal argument.


Book Synopsis Logical Models of Legal Argumentation by : H. Prakken

Download or read book Logical Models of Legal Argumentation written by H. Prakken and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the study of forms of legal reasoning, logic and argumentation theory long followed separate tracks. `Legal logicians' tended to focus on a deductive reconstruction of justifying a decision, disregarding the dialectical process leading to the chosen justification. Others instead emphasized the adversarial and discretionary nature of legal reasoning, involving reasonable evaluation of alternative choices, and the use of analogical reasoning. Recently, however, developments in Artificial Intelligence and Law have paved the way for overcoming this separation. Logic has widened its scope to defensible argumentation, and informal accounts of analogy and dialectics have inspired the construction of computer programs. Thus the prospect is emerging of an integrated logical and dialectical account of legal argument, adding to the understanding of legal reasoning, and providing a formal basis for computer tools that assist and mediate legal debates while leaving room for human initiative. This book presents contributions to this development. From a logical point of view it covers topics such as evaluating conflicting arguments, weighing reasons, modelling legal disputes as a dialogue game, the role of the burden of proof, the relation between principles, rules, reasons and facts, and the relation between deductive and nondeductive arguments. Written by leading scholars in the field and building on recent developments in logic and Artificial Intelligence, the chapters provide a state-of-the-art account of research on the logical aspects of legal argument.

Logical Models of Legal Argumentation

Logical Models of Legal Argumentation

Author: Henry Prakken

Publisher:

Published: 1996

Total Pages: 212

ISBN-13:

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Book Synopsis Logical Models of Legal Argumentation by : Henry Prakken

Download or read book Logical Models of Legal Argumentation written by Henry Prakken and published by . This book was released on 1996 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Logical Tools for Modelling Legal Argument

Logical Tools for Modelling Legal Argument

Author: H. Prakken

Publisher: Springer Science & Business Media

Published: 2013-04-17

Total Pages: 319

ISBN-13: 9401589755

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This book is a revised and extended version of my PhD Thesis 'Logical Tools for Modelling Legal Argument', which I defended on 14 January 1993 at the Free University Amsterdam. The first five chapters of the thesis have remained almost completely unchanged but the other chapters have undergone considerable revision and expansion. Most importantly, I have replaced the formal argument-based system of the old Chapters 6, 7 and 8 with a revised and extended system, whieh I have developed during the last three years in collaboration with Giovanni Sartor. Apart from some technical improvements, the main additions to the old system are the enriehment of its language with a nonprovability operator, and the ability to formalise reasoning about preference criteria. Moreover, the new system has a very intuitive dialectieal form, as opposed to the rather unintuitive fixed-point appearance of the old system. Another important revision is the split of the old Chapter 9 into two new chapters. The old Section 9. 1 on related research has been updated and expanded into a whole chapter, while the rest of the old chapter is now in revised form in Chapter 10. This chapter also contains two new contributions, a detailed discussion of Gordon's Pleadings Game, and a general description of a multi-Iayered overall view on the structure of argu mentation, comprising a logieal, dialectical, procedural and strategie layer. Finally, in the revised conclusion I have paid more attention to the relevance of my investigations for legal philosophy and argumentation theory.


Book Synopsis Logical Tools for Modelling Legal Argument by : H. Prakken

Download or read book Logical Tools for Modelling Legal Argument written by H. Prakken and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a revised and extended version of my PhD Thesis 'Logical Tools for Modelling Legal Argument', which I defended on 14 January 1993 at the Free University Amsterdam. The first five chapters of the thesis have remained almost completely unchanged but the other chapters have undergone considerable revision and expansion. Most importantly, I have replaced the formal argument-based system of the old Chapters 6, 7 and 8 with a revised and extended system, whieh I have developed during the last three years in collaboration with Giovanni Sartor. Apart from some technical improvements, the main additions to the old system are the enriehment of its language with a nonprovability operator, and the ability to formalise reasoning about preference criteria. Moreover, the new system has a very intuitive dialectieal form, as opposed to the rather unintuitive fixed-point appearance of the old system. Another important revision is the split of the old Chapter 9 into two new chapters. The old Section 9. 1 on related research has been updated and expanded into a whole chapter, while the rest of the old chapter is now in revised form in Chapter 10. This chapter also contains two new contributions, a detailed discussion of Gordon's Pleadings Game, and a general description of a multi-Iayered overall view on the structure of argu mentation, comprising a logieal, dialectical, procedural and strategie layer. Finally, in the revised conclusion I have paid more attention to the relevance of my investigations for legal philosophy and argumentation theory.

Legal Argumentation and Evidence

Legal Argumentation and Evidence

Author: Douglas Walton

Publisher: Penn State Press

Published: 2010-11-01

Total Pages: 400

ISBN-13: 9780271048338

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A leading expert in informal logic, Douglas Walton turns his attention in this new book to how reasoning operates in trials and other legal contexts, with special emphasis on the law of evidence. The new model he develops, drawing on methods of argumentation theory that are gaining wide acceptance in computing fields like artificial intelligence, can be used to identify, analyze, and evaluate specific types of legal argument. In contrast with approaches that rely on deductive and inductive logic and rule out many common types of argument as fallacious, Walton&’s aim is to provide a more expansive view of what can be considered &"reasonable&" in legal argument when it is construed as a dynamic, rule-governed, and goal-directed conversation. This dialogical model gives new meaning to the key notions of relevance and probative weight, with the latter analyzed in terms of pragmatic criteria for what constitutes plausible evidence rather than truth.


Book Synopsis Legal Argumentation and Evidence by : Douglas Walton

Download or read book Legal Argumentation and Evidence written by Douglas Walton and published by Penn State Press. This book was released on 2010-11-01 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: A leading expert in informal logic, Douglas Walton turns his attention in this new book to how reasoning operates in trials and other legal contexts, with special emphasis on the law of evidence. The new model he develops, drawing on methods of argumentation theory that are gaining wide acceptance in computing fields like artificial intelligence, can be used to identify, analyze, and evaluate specific types of legal argument. In contrast with approaches that rely on deductive and inductive logic and rule out many common types of argument as fallacious, Walton&’s aim is to provide a more expansive view of what can be considered &"reasonable&" in legal argument when it is construed as a dynamic, rule-governed, and goal-directed conversation. This dialogical model gives new meaning to the key notions of relevance and probative weight, with the latter analyzed in terms of pragmatic criteria for what constitutes plausible evidence rather than truth.

Modeling Legal Argument

Modeling Legal Argument

Author: Kevin D. Ashley

Publisher: MIT Press (MA)

Published: 1990

Total Pages: 360

ISBN-13:

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"Modeling Legal Argument "provides a comprehensive treatment of case-based reasoning and a detailed description of a computer program called Hypo, that models the way attorneys argue with cases, real and hypothetical. The program offers significant advantages over "keyword" case retrieval systems in the legal field and demonstrates how to design expert systems that assist the user by presenting reasonable alternative answers on all sides of an issue and by citing case examples to explain their advice.Hypo analyzes problem situations dealing with trade secrets disputes, retrieves relevant legal cases from its database and fashions them into reasonable legal arguments about who should win. The arguments demonstrate the program's ability to reason symbolically with past cases, to draw factual analogies between cases, to cite them in arguments, to distinguish them, and to pose counter-examples and hypotheticals based on past cases."Modeling Legal Argument "discusses the law as a paradigm of case-based argument, introduces Hypo and its adversarial reasoning process, provides an overview of the Hypo program, and gives extended examples of the model's reasoning capabilities. It describes the case knowledge base, a dimensional index, basic mechanisms of case-based reasoning, and offers a theory of case-based argument in Hypo. Ashley evaluates Hypo's performance and takes up adversarial case-based reasoning beyond the law and extensions of the Hypo model.Kevin D. Ashley is a Research Scientist at the Learning Research an Development Center and Assistant Professor of Law at the University of Pittsburgh. "Modeling Legal Argument is "included in the Artificial Intelligence and Legal Reasoning series, edited by L. Thorne McCarty and Edwina L. Rissland.


Book Synopsis Modeling Legal Argument by : Kevin D. Ashley

Download or read book Modeling Legal Argument written by Kevin D. Ashley and published by MIT Press (MA). This book was released on 1990 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Modeling Legal Argument "provides a comprehensive treatment of case-based reasoning and a detailed description of a computer program called Hypo, that models the way attorneys argue with cases, real and hypothetical. The program offers significant advantages over "keyword" case retrieval systems in the legal field and demonstrates how to design expert systems that assist the user by presenting reasonable alternative answers on all sides of an issue and by citing case examples to explain their advice.Hypo analyzes problem situations dealing with trade secrets disputes, retrieves relevant legal cases from its database and fashions them into reasonable legal arguments about who should win. The arguments demonstrate the program's ability to reason symbolically with past cases, to draw factual analogies between cases, to cite them in arguments, to distinguish them, and to pose counter-examples and hypotheticals based on past cases."Modeling Legal Argument "discusses the law as a paradigm of case-based argument, introduces Hypo and its adversarial reasoning process, provides an overview of the Hypo program, and gives extended examples of the model's reasoning capabilities. It describes the case knowledge base, a dimensional index, basic mechanisms of case-based reasoning, and offers a theory of case-based argument in Hypo. Ashley evaluates Hypo's performance and takes up adversarial case-based reasoning beyond the law and extensions of the Hypo model.Kevin D. Ashley is a Research Scientist at the Learning Research an Development Center and Assistant Professor of Law at the University of Pittsburgh. "Modeling Legal Argument is "included in the Artificial Intelligence and Legal Reasoning series, edited by L. Thorne McCarty and Edwina L. Rissland.

Fundamentals of Legal Argumentation

Fundamentals of Legal Argumentation

Author: Eveline T. Feteris

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 236

ISBN-13: 9401592195

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Legal argumentation is a distinctively multidisciplinary field of inquiry. It draws its data, assumptions and methods from disciplines such as legal theory, legal philosophy, logic, argumentation theory, rhetoric, linguistics, literary theory, philosophy, sociology, and artificial intelligence. This presents the growing group of interested scholars and students with a problem of access, since, even for those active in the field, it is not common to have acquired a familiarity with relevant aspects of each discipline that enters into this multidisciplinary matrix. Fundamentals of Legal Argumentation offers its readers a unique and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as all major approaches and trends in the contemporary research. It surveys relevant theoretical factors both from various continental law traditions and common law countries.


Book Synopsis Fundamentals of Legal Argumentation by : Eveline T. Feteris

Download or read book Fundamentals of Legal Argumentation written by Eveline T. Feteris and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Legal argumentation is a distinctively multidisciplinary field of inquiry. It draws its data, assumptions and methods from disciplines such as legal theory, legal philosophy, logic, argumentation theory, rhetoric, linguistics, literary theory, philosophy, sociology, and artificial intelligence. This presents the growing group of interested scholars and students with a problem of access, since, even for those active in the field, it is not common to have acquired a familiarity with relevant aspects of each discipline that enters into this multidisciplinary matrix. Fundamentals of Legal Argumentation offers its readers a unique and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as all major approaches and trends in the contemporary research. It surveys relevant theoretical factors both from various continental law traditions and common law countries.

Artificial Intelligence and Legal Analytics

Artificial Intelligence and Legal Analytics

Author: Kevin D. Ashley

Publisher: Cambridge University Press

Published: 2017-07-10

Total Pages: 451

ISBN-13: 1107171504

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This book describes how text analytics and computational models of legal reasoning will improve legal IR and let computers help humans solve legal problems.


Book Synopsis Artificial Intelligence and Legal Analytics by : Kevin D. Ashley

Download or read book Artificial Intelligence and Legal Analytics written by Kevin D. Ashley and published by Cambridge University Press. This book was released on 2017-07-10 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how text analytics and computational models of legal reasoning will improve legal IR and let computers help humans solve legal problems.

Legal Argumentation Theory: Cross-Disciplinary Perspectives

Legal Argumentation Theory: Cross-Disciplinary Perspectives

Author: Christian Dahlman

Publisher: Springer Science & Business Media

Published: 2012-09-14

Total Pages: 239

ISBN-13: 9400746709

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This book offers its readers an overview of recent developments in the theory of legal argumentation written by representatives from various disciplines, including argumentation theory, philosophy of law, logic and artificial intelligence. It presents an overview of contributions representative of different academic and legal cultures, and different continents and countries. The book contains contributions on strategic maneuvering, argumentum ad absurdum, argumentum ad hominem, consequentialist argumentation, weighing and balancing, the relation between legal argumentation and truth, the distinction between the context of discovery and context of justification, and the role of constitutive and regulative rules in legal argumentation. It is based on a selection of papers that were presented in the special workshop on Legal Argumentation organized at the 25th IVR World Congress for Philosophy of Law and Social Philosophy held 15-20 August 2011 in Frankfurt, Germany.


Book Synopsis Legal Argumentation Theory: Cross-Disciplinary Perspectives by : Christian Dahlman

Download or read book Legal Argumentation Theory: Cross-Disciplinary Perspectives written by Christian Dahlman and published by Springer Science & Business Media. This book was released on 2012-09-14 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers its readers an overview of recent developments in the theory of legal argumentation written by representatives from various disciplines, including argumentation theory, philosophy of law, logic and artificial intelligence. It presents an overview of contributions representative of different academic and legal cultures, and different continents and countries. The book contains contributions on strategic maneuvering, argumentum ad absurdum, argumentum ad hominem, consequentialist argumentation, weighing and balancing, the relation between legal argumentation and truth, the distinction between the context of discovery and context of justification, and the role of constitutive and regulative rules in legal argumentation. It is based on a selection of papers that were presented in the special workshop on Legal Argumentation organized at the 25th IVR World Congress for Philosophy of Law and Social Philosophy held 15-20 August 2011 in Frankfurt, Germany.

Law and Logic

Law and Logic

Author: Joseph Horovitz

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 247

ISBN-13: 3709171113

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This book has two related aims: to investigate the frequently voiced claim that legal argument is nonformal in nature and, within the limits of such an investigation, to ascertain the most general proper ties of law as a rational system. Examination of a number of views of legal argument, selected from recent discussions in Germany, Belgium, and the English-speaking countries, will lead to the follow ing main conclusions. The nonformalistic conceptions of the logic of legal argument are ambiguous and unclear. Moreover, insofar as these conceptions are capable of clarification in the light of recent analytical methodology, they can be seen to be either mistaken or else compatible with the formalistic position. Because law is socially directive and coordinative, it is dependent upon theoretical psycho sociology and calls, in principle, for a deontic and inductive logic. The primary function of legal argument is to provide continuing reinterpretation and confirmation of legal rules, conceived as theo retical prescriptions. On the basis of this conception, the old juris prudential conflict between formalism and rule-scepticism appears substantially resolved. Aristotle, the founder of the theory of argument, conceived it as "the science of establishing conclusions" (bnO'l;~fl'YJ &no~e!"u,,~), designed to guide people in rational argumentation. In time, how ever, logic forsook its practical function and developed as a highly abstract and disinterested study, today called "formal logic"; and the theory of practical argument was either neglected or relegated to an appendix to rhetoric.


Book Synopsis Law and Logic by : Joseph Horovitz

Download or read book Law and Logic written by Joseph Horovitz and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book has two related aims: to investigate the frequently voiced claim that legal argument is nonformal in nature and, within the limits of such an investigation, to ascertain the most general proper ties of law as a rational system. Examination of a number of views of legal argument, selected from recent discussions in Germany, Belgium, and the English-speaking countries, will lead to the follow ing main conclusions. The nonformalistic conceptions of the logic of legal argument are ambiguous and unclear. Moreover, insofar as these conceptions are capable of clarification in the light of recent analytical methodology, they can be seen to be either mistaken or else compatible with the formalistic position. Because law is socially directive and coordinative, it is dependent upon theoretical psycho sociology and calls, in principle, for a deontic and inductive logic. The primary function of legal argument is to provide continuing reinterpretation and confirmation of legal rules, conceived as theo retical prescriptions. On the basis of this conception, the old juris prudential conflict between formalism and rule-scepticism appears substantially resolved. Aristotle, the founder of the theory of argument, conceived it as "the science of establishing conclusions" (bnO'l;~fl'YJ &no~e!"u,,~), designed to guide people in rational argumentation. In time, how ever, logic forsook its practical function and developed as a highly abstract and disinterested study, today called "formal logic"; and the theory of practical argument was either neglected or relegated to an appendix to rhetoric.

Fundamentals of Legal Argumentation

Fundamentals of Legal Argumentation

Author: Eveline T. Feteris

Publisher: Springer

Published: 2017-07-10

Total Pages: 361

ISBN-13: 9402411291

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This book is an updated and revised edition of Fundamentals of Legal Argumentation published in 1999. It discusses new developments that have taken place in the past 15 years in research of legal argumentation, legal justification and legal interpretation, as well as the implications of these new developments for the theory of legal argumentation. Almost every chapter has been revised and updated, and the chapters include discussions of recent studies, major additions on topical issues, new perspectives, and new developments in several theoretical areas. Examples of these additions are discussions of recent developments in such areas as Habermas' theory, MacCormick's theory, Alexy's theory, Artificial Intelligence and law, and the pragma-dialectical theory of legal argumentation. Furthermore it provides an extensive and systematic overview of approaches and studies of legal argumentation in the context of legal justification in various legal systems and countries that have been important for the development of research of legal argumentation. The book contains a discussion of influential theories that conceive the law and legal justification as argumentative activity. From different disciplinary and theoretical angles it addresses such topics as the institutional characteristics of the law and the relation between general standards for moral discussions and legal standards such as the Rule of Law. It discusses patterns of legal justification in the context of different types of problems in the application of the law and it describes rules for rational legal discussions. The combination of the sound basis of the first edition and the discussions of new developments make this new edition an up-to-date and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as major approaches and trends in the contemporary research. It surveys the relevant theoretical factors both from various continental law traditions and common law countries.


Book Synopsis Fundamentals of Legal Argumentation by : Eveline T. Feteris

Download or read book Fundamentals of Legal Argumentation written by Eveline T. Feteris and published by Springer. This book was released on 2017-07-10 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an updated and revised edition of Fundamentals of Legal Argumentation published in 1999. It discusses new developments that have taken place in the past 15 years in research of legal argumentation, legal justification and legal interpretation, as well as the implications of these new developments for the theory of legal argumentation. Almost every chapter has been revised and updated, and the chapters include discussions of recent studies, major additions on topical issues, new perspectives, and new developments in several theoretical areas. Examples of these additions are discussions of recent developments in such areas as Habermas' theory, MacCormick's theory, Alexy's theory, Artificial Intelligence and law, and the pragma-dialectical theory of legal argumentation. Furthermore it provides an extensive and systematic overview of approaches and studies of legal argumentation in the context of legal justification in various legal systems and countries that have been important for the development of research of legal argumentation. The book contains a discussion of influential theories that conceive the law and legal justification as argumentative activity. From different disciplinary and theoretical angles it addresses such topics as the institutional characteristics of the law and the relation between general standards for moral discussions and legal standards such as the Rule of Law. It discusses patterns of legal justification in the context of different types of problems in the application of the law and it describes rules for rational legal discussions. The combination of the sound basis of the first edition and the discussions of new developments make this new edition an up-to-date and comprehensive survey of the various theoretical influences which have informed the study of legal argumentation. It discusses salient backgrounds to this field as well as major approaches and trends in the contemporary research. It surveys the relevant theoretical factors both from various continental law traditions and common law countries.