While defeasibility in legal reasoning has been the subject of recent scholarship, it has yet to be studied in the context of judicial opinion. Yet, being subject to appeal, judicial decisions can default for a variety of reasons. Prakken (2001) argued that the defeasibility affecting reasoning involved in adversarial legal argumentation is best analysed as procedural rather than logical. In this paper we argue that the defeasibility of ratio decendi is similarly best explained and modeled in a procedural and dialectical (...) framework. We propose that appeals are best understood as meta-dialogues about the reasoned dialogue occurring in the initial trial. (shrink)

In law, the soundness of pragmatic argumentation in which a decision is defended by pointing to the consequences of the application of a particular legal rule, is often disputed. Some legal authors think that it is more of a rhetorical trick than a se rious attempt to convince in a rational way. Others think that it can be an acceptable way to defend a decision, provided that judges make explicit which value judgments underlie their decisions. I will sketch a pragma-dialectical (...) framework for pragmati c argumentation and describe the criteria for sound pragmatic argumentation in a legal context. (shrink)

This paper answers the question how pragmatic argumentation which occurs in a legal context, can be analyzed and evaluated adequately. First, the author surveys various ideas taken from argumentation theory and legal theory on the analysis and evaluation of pragmatic argumentation. Then, on the basis of these ideas, she develops a pragma-dialectical instrument for analyzing and evaluating pragmatic argumentation in a legal context. Finally she demonstrates how this instrument can be used by giving an exemplary analysis and evaluation of pragmatic (...) argumentation in a decision of the Dutch Supreme Court. (shrink)

We discuss several aspects of legal arguments, primarily arguments about the meaning of statutes. First, we discuss how the requirements of argument guide the specification and selection of supporting cases and how an existing case base influences argument formation. Second, we present,our evolving taxonomy of patterns of actual legal argument. This taxonomy builds upon our much earlier work on argument moves and also on our more recent analysis of how cases are used to support arguments for the interpretation of legal (...) statutes. Third, we show how the theory of argument used by CABARET, a hybrid case-based/rule-based reasoner, can support many of the argument patterns in our taxonomy. (shrink)

The theory of speech acts, formulated by Austin and developed by Searle, is widely applied to analyse and classify various speech acts. In this paper it is assumed that legal texts, especially normative acts i.e. constitutions and statutes, are direct speech acts. Normative acts are linguistic entities and they do not exist outside the language, thus the theory of speech acts may be applied to examine them. They are also considered to be performative utterances according to Austin’s classification. In this (...) paper the intention is to compare Cypriot, Greek and Polish normative acts on the basis of the so-called classical theory of speech acts and typology of performativity exponents. The author will compare various methods of expressing performativity in reference to the meaning conveyed by them. Furthermore, other exponents of performativity occurring in the analysed texts shall also be compared. The results obtained while performing the analysis and comparison may be significant for scholars, lawyers and translators. (shrink)

The BankXX system models the process of perusing and gathering information for argument as a heuristic best-first search for relevant cases, theories, and other domain-specific information. As BankXX searches its heterogeneous and highly interconnected network of domain knowledge, information is incrementally analyzed and amalgamated into a dozen desirable ingredients for argument (called argument pieces), such as citations to cases, applications of legal theories, and references to prototypical factual scenarios. At the conclusion of the search, BankXX outputs the set of argument (...) pieces filled with harvested material relevant to the input problem situation.This research explores the appropriateness of the search paradigm as a framework for harvesting and mining information needed to make legal arguments. In this article, we describe how legal research fits the heuristic search framework and detail how this model is used in BankXX. We describe the BankXX program with emphasis on its representation of legal knowledge and legal argument. We describe the heuristic search mechanism and evaluation functions that drive the program. We give an extended example of the processing of BankXX on the facts of an actual legal case in BankXX's application domain — the good faith question of Chapter 13 personal bankruptcy law. We discuss closely related research on legal knowledge representation and retrieval and the use of search for case retrieval or tasks related to argument creation. Finally we review what we believe are the contributions of this research to the understanding of the diverse disciplines it addresses. (shrink)

In this article, we try to trace the relationship between semiotics and theory of legal reasoning using Peirce’s idea that all reasoning must be necessarily in signs: every act of reasoning/argumentation is a sign process, leading to “the growth of knowledge. The broad scope and universal character of Peirce’s sign theory of reasoning allows us to look for new conciliatory paradigms, which must be presented in terms of possible synthesis between the traditional approaches to argumentation. These traditional approaches are strongly (...) affected by either the dialectical (logical) perspective or the rhetorical perspective on argumentation, while Peirce’s approach tends to reconcile the rhetorical and methodological aspects of reasoning. This reconcilation is best illustrated by Peircean analysis of argument’s logical and rhetorical structure; while the diagrammatic (iconic) analysis of arguments is performed in the system of Existential Graphs (which is Peirce’s major methodological system, designed for the expressions of propositions in point of their relational structure). Obviously, Peirce’s original division of argument parts offered only the characterisation of the sign activity (involved in the process of reasoning), and thus left much to be desired in terms of practical explication. (shrink)

This essay discusses the developments and trends of research in legalargumentation of the last 25 years. The essay starts with a survey of thevarious approaches which can be distinguished: the logical approach, therhetorical approach, and the dialogical approach. Then it identifies varioustopics in the research, which constitute the various components of aresearch programme of legal argumentation: the philosophical component, thetheoretical component, the reconstruction component, the empiricalcomponent, and the practical component. It concludes with a discussion ofthe main trends in the research (...) of the last 25 years. (shrink)

This paper sets out a view of a General Jurisprudence that is needed to underpin the institutionalised discipline of law as it becomes more cosmopolitan in the context of “globalisation”, and considers its implications. Part I restates a position on the mission and nature of the discipline of law and of the role of jurisprudence, as its theoretical part, in contributing to the health of the discipline. Part II clarifies some questions that have been raised about this conception of General (...) Jurisprudence: (i) the implications of “globalisation”; (ii) The meaning of “General Jurisprudence” in this context; (iii) The relationship between Jurisprudence, Legal Philosophy, and social scientific approaches to law; and (iv) The significance of the idea of “non-state law”. Part III illustrates through concrete examples some implications for possible agendas and issues suggested by this model within the areas roughly characterised as analytical, normative, empirical, and critical jurisprudence, including critical analysis of the assumptions and presuppositions typically underpinning mainstream work in fields such ascomparative law, public international law, religious law, and socio-legal studies. (shrink)

The proposed reflection intends to present the problem of judicial adjudication as a substantially-axiologically founded autonomous moment on the practical realization of law, and to explore this understanding in confrontation with external exigencies, mostly teleologically determined—hence, beyond strict deductive application, as a syllogistic reference of facts to norms, and finalistically determined decision, as an option among possible alternatives to achieve specific aims. The main objective is to enter into a discussion on the methodological meaning of “integrity”, “hard cases” and “right (...) answer”, as presented by Ronald Dworkin, and a critical reflection on the criticism of that approach levelled by Neil MacCormick, so as to confront the relevance of principle and policy arguments, in order to bring about a different methodological approach, an alternative jurisprudentialist conception of adjudication, incorporating a practical-normative constitutive dialectics between legal controversy and legal system, such as that presented by Castanheira Neves. The focus will, then, be the legitimacy of the connection of arguments of principle and consequentialist arguments in adjudication, its selection and its justification, stating, therefore, a specifically assumed judicium, a judicative decision, having the legal system as its horizon of normative reference and of substantial and institutional autonomy. (shrink)