This critical note responds to Guiaşu and Tindale’s “Logical fallacies and invasion biology,” from our perspective as ecologists and philosophers of science engaged in debates about invasion biology and invasive species. We agree that “the level of charges and dismissals” surrounding these debates might be “unhealthy” and that “it will be very difficult for dialogues to move forward unless genuine attempts are made to understand the positions being held and to clarify the terms involved.” Although they raise several important scientific, (...) conceptual, and ethical issues at the foundations of invasion biology, we believe Guiaşu and Tindale’s attempts to clarify the debate were unsuccessful. Like some other critics of the field, they tend to misrepresent invasion biology by cherry-picking and constructing “straw people,” inaccurately portraying invasion biology, and thus failing to elevate the dialogue. In this critique, we clarify areas in the invasion biology literature misrepresented by Guiaşu and Tindale. We attempt to provide a more balanced view of areas of reasonable debate within invasion biology, including disputes about empirical evidence, diverse risk attitudes, and other diverse ethical commitments. (shrink)

Studies Plato's approach to argumentation, exploring his role as logician, rhetorician, and dialectician in a way that sees these three aspects working together.

Of the different modes that characterize Michael Gilbert’s multi-modal theory of argumentation, the kisceral is in many ways the most challenging to understand and employ. It appears to bypass the processes of reason that have dominated accounts in the Western tradition, diverting us toward the private worlds of hunches and gut reactions. This paper explores the nature of kisceral arguments, comparing them to the way intuition operates in William James’ examination of mystical experience. Having provided an account of kisceral arguments (...) and their operation, the discussion turns to the even more challenging issue of how such arguments should be evaluated. (shrink)

The purpose of this paper is to analyze the structure and the defeasibility conditions of argument from analogy, addressing the issues of determining the nature of the comparison underlying the analogy and the types of inferences justifying the conclusion. In the dialectical tradition, different forms of similarity were distinguished and related to the possible inferences that can be drawn from them. The kinds of similarity can be divided into four categories, depending on whether they represent fundamental semantic features of the (...) terms of the comparison or non-semantic ones, indicating possible characteristics of the referents. Such distinct types of similarity characterize different kinds of analogical arguments, all based on a similar general structure, in which a common genus is abstracted. Depending on the nature of the abstracted common feature, different rules of inference will apply, guaranteeing the attribution of the analogical predicate to the genus and to the primary subject. This analysis of similarity and the relationship thereof with the rules of inference allows a deeper investigation of the defeasibility conditions. (shrink)

Recent work in argumentation theory has emphasized the nature of arguers and arguments along with various theoretical perspectives. Less attention has been given to the third feature of any argumentative situation - the audience. This book fills that gap by studying audience reception to argumentation and the problems that come to light as a result of this shift in focus. Christopher W. Tindale advances the tacit theories of several earlier thinkers by addressing the central problems connected with audience considerations in (...) argumentation, problems that earlier philosophical theories overlook or inadequately accommodate. The main tools employed in exploring the central issues are drawn from contemporary philosophical research on meaning, testimony, emotion and agency. These are then combined with some of the major insights of recent rhetorical work in argumentation to advance our understanding of audiences and suggest avenues for further research. (shrink)

Fallacies and Argument Appraisal presents an introduction to the nature, identification, and causes of fallacious reasoning, along with key questions for evaluation. Drawing from the latest work on fallacies as well as some of the standard ideas that have remained relevant since Aristotle, Christopher Tindale investigates central cases of major fallacies in order to understand what has gone wrong and how this has occurred. Dispensing with the approach that simply assigns labels and brief descriptions of fallacies, Tindale provides fuller treatments (...) that recognize the dialectical and rhetorical contexts in which fallacies arise. This volume analyzes major fallacies through accessible, everyday examples. Critical questions are developed for each fallacy to help the student identify them and provide considered evaluations. (shrink)

Now in its fifth edition, Good Reasoning Matters! is a practical guide to recognizing, evaluating, and constructing arguments. Combining straightforward instruction with abundant exercises and examples, this innovative introduction to argument schemes and rhetorical techniques will help students learn to think critically both within and beyond the classroom.

Plausible (eikotic) reasoning known from ancient Greek (late Academic) skeptical philosophy is shown to be a clear notion that can be analyzed by argumentation methods, and that is important for argumentation studies. It is shown how there is a continuous thread running from the Sophists to the skeptical philosopher Carneades, through remarks of Locke and Bentham on the subject, to recent research in artificial intelligence. Eleven characteristics of plausible reasoning are specified by analyzing key examples of it recognized as important (...) in ancient Greek skeptical philosophy using an artificial intelligence model called the Carneades Argumentation System (CAS). By applying CAS to ancient examples it is shown how plausible reasoning is especially useful for gaining a better understanding of evidential reasoning in law, and argued that it can also be applied to everyday argumentation. Our analysis of the snake and rope example of Carneades is also used to point out some ways CAS needs to be extended if it is to more fully model the views of this ancient philosopher on argumentation. (shrink)

Built in the centre of Copenhagen, and noted for its equestrian stairway, the Rundetaarn, was intended as an astronomical observatory. Part of a complex of buildings that once included a university library, it affords expansive views of the city in every direction, towering above what surrounds it. The metaphor of the towering figure, who sees what others might not, whose vantage point allows him to visualize how things fit together, and who has an earned-stature of respect and authority, fits another (...) Danish stalwart, Hans Vilhelm Hansen, whose contributions to the fields of informal logic and argument theory have earned the gratitude of his colleagues, and inspired this collection of essays, written to express the appreciation of its authors and of the many, many colleagues they represent. (shrink)

This innovative text reinvigorates argumentation studies by exploring the experience of argument across cultures, introducing an anthropological perspective into the domains of rhetoric, communication, and philosophy. The Anthropology of Argument fills an important gap in contemporary argumentation theory by shifting the focus away from the purely propositional element of arguments and onto how they emerge from the experiences of peoples with diverse backgrounds, demonstrating how argumentation can be understood as a means of expression and a gathering place of ideas and (...) styles. Confronting the limitations of the Western tradition of logic and searching out the argumentative roles of place, orality, myth, narrative, and audience, it examines the nature of multi-modal argumentation. Tindale analyzes the impacts of colonialism on the field and addresses both optimistic and cynical assessments of contextual difference. The results have implications for our understanding of contemporary argumentative discourse in areas marked by deep disagreement, like politics, law and social policy. The book will interest scholars and upper-level students in communication, philosophy, argumentation theory, anthropology, rhetoric, linguistics, and cultural studies. (shrink)

Higher education students experience high rates of negative emotions such as stress, anxiety, and depression. Although emotions are known to influence attitudes per se, previous research has not examined how emotionality may relate to attitudes toward plagiarism. This study sought to examine how positive and negative emotionality relates to students’ positive attitudes, negative attitudes, and subjective norms concerning plagiarism. University students completed the Attitudes Toward Plagiarism questionnaire and measures of anxiety, stress, depression, and negative and positive affect. Extending on previous (...) research, it was found that a lack of positive affect and negative emotionality, specifically stress, were significant predictors of attitudes toward plagiarism. Emotionality predicted 8.9% and 10% of the variance in positive plagiarism attitudes and subjective norms, respectively. Interestingly, gender was unable to predict subjective norms relating to plagiarism. Support for negative and positive emotionality predicting attitudes toward plagiarism challenges the assumption that emotions do not predict attitudes within the plagiarism context. These findings are practically relevant, as they highlight the necessity of implementing interventions directly targeting mental health within the higher education setting. (shrink)

Higher education students experience high rates of negative emotions such as stress, anxiety, and depression. Although emotions are known to influence attitudes per se, previous research has not examined how emotionality may relate to attitudes toward plagiarism. This study sought to examine how positive and negative emotionality relates to students’ positive attitudes, negative attitudes, and subjective norms concerning plagiarism. University students completed the Attitudes Toward Plagiarism questionnaire and measures of anxiety, stress, depression, and negative and positive affect. Extending on previous (...) research, it was found that a lack of positive affect and negative emotionality, specifically stress, were significant predictors of attitudes toward plagiarism. Emotionality predicted 8.9% and 10% of the variance in positive plagiarism attitudes and subjective norms, respectively. Interestingly, gender was unable to predict subjective norms relating to plagiarism. Support for negative and positive emotionality predicting attitudes toward plagiarism challenges the assumption that emotions do not predict attitudes within the plagiarism context. These findings are practically relevant, as they highlight the necessity of implementing interventions directly targeting mental health within the higher education setting. (shrink)

Writing from a scientifically and philosophically informed perspective, the authors provide a critical overview of the conceptual difficulties encountered in many current neuroscientific and psychological theories.

We analyze the “Logical fallacies and reasonable debates in invasion biology: a response to Guiaşu and Tindale” article by Frank et al., and also discuss this work in the context of recent intense debates in invasion biology, and reactions by leading invasion biologists to critics of aspects of their field. While we acknowledge the attempt by Frank et al., at least in the second half of their paper, to take into account more diverse points of view about non-native species and (...) their complex roles in ecosystems, we also find the accusations of misrepresenting invasion biology, for instance by “cherry-picking” and “constructing ‘straw people’”, directed at the Guiaşu and Tindale study to be unwarranted. Despite the sometimes harsh responses by leading invasion biologists to critics of their field, we believe that persistent and fundamental problems remain in invasion biology, and we discuss some of these problems in this article. Failing to recognize these problems, and simply dismissing or minimizing legitimate criticisms, will not advance the cause, or enhance the general appeal, of invasion biology and will prevent meaningful progress in understanding the multiple contributions non-native species can bring to various ecosystems worldwide. We recommend taking a more open-minded and pragmatic approach towards non-native species and the novel ecosystems they are an integral part of. (shrink)

In any field, we might expect different features relevant to its understanding and development to receive attention at different times, depending on the stage of that field’s growth and the interests that occupy theorists and even the history of the theorists themselves. In the relatively young life of argumentation theory, at least as it has formed a body of issues with identified research questions, attention has almost naturally been focused on the central concern of the field—arguments. Focus is also given (...) to the nature of arguers and the position of the evaluator, who is often seen as possessing a “God’s-eye view” (Hamblin 1970). Less attention, however, has been paid in the philosophical literature to the .. (shrink)

In 1958, Chaïm Perelman and Lucie Olbrechts-Tyteca published Traité de l'argumentation: La nouvelle rhétorique, the culmination of many years study. A seminal work in philosophy and rhetoric, it aimed to bring classical Aristotelian rhetoric into the modern era and present a model of argumentation that promoted action and reasonableness. One distinctive feature of the dense account found in this work is the claim that the success of argumentation can in part be measured by the responses of the audience for which (...) it is intended. By that standard, the project of the new rhetoric appears unsuccessful, because the audience for whom Perelman (and Olbrechts-Tyteca) expressly wrote was the audience least captivated by .. (shrink)

Leading invasion biologists sometimes dismiss critics and criticisms of their field by invoking “the straw man” fallacy. Critics of invasion biology are also labelled as a small group of “naysayers” or “contrarians”, who are sometimes engaging in “science denialism”. Such unfortunate labels can be seen as a way to possibly suppress legitimate debates and dismiss or minimize reasonable concerns about some aspects of invasion biology, including the uncertainties about the geographic origins and complex environmental impacts of species, and the control (...) programs against species perceived as “invasive”. In assessing the quality of the debate in this area, we examine the validity of the use of various strategies, including the “straw man” concept, and explore a range of potential logical fallacies present in some recent prominent discussions about invasion biology and so-called “invasive” species. The goal is to add some clarity to the concepts involved, point out some problematic issues, and improve the quality of the debates as the discussions move forward. (shrink)

This paper discusses the fundamental sense in which the components of an argument should be relevant to the intended audience. In particular, the evidence advanced should be relevant to the facts and assumptions that are manifest in the cognitive environment of the audience. A version of Sperber and Wilson's concept of the cognitive environment is applied to argumentative concerns, and from this certain features of audience-relevance are explored: that the relevance of a premise can vary with the audience; that irrelevant (...) premises can be made relevant; that evidence can be relevant by degrees; and that this notion of relevance will assist the argumentation analyst in the identification and assessment of hidden premises. (shrink)

ABSTRACT Discourses conceal as much as they reveal, but in their concealment they may invite an audience into the silences of the gaps and pauses they contain in order to reflect and find insight. The moments of opportunity provided by these gaps suggest two sides to the concept of kairos, capturing both the ability of the author/speaker to create the opportune moment in the discourse, and the ability of the reader/listener to see that moment and the experience it invites.

A long-standing theme in discussion of perception and thought has been that our primary cognitive contact with individual objects and events in the world derives from our perceptual contact with them. When I look at a duck in front of me, I am not merely presented with the fact that there is at least one duck in the area, rather I seem to be presented withthisthing (as one might put it from my perspective) in front of me, which looks to (...) me to be a duck. Furthermore, such a perception would seem to put me in a position not merely to make the existential judgment that there is some duck or other present, but rather to make a singular, demonstrative judgment, that that is a duck. My grounds for an existential judgment in this case derives from my apprehension of the demonstrative thought and not vice versa. (shrink)

The paper examines Walton‘s concept of fallacy as it develops throughthree stages of his work: from the early series of papers co-authored withJohn Woods; through a second phase of involvement with thepragma-dialectical perspective; and on to the final phase in which heoffers a distinct pragmatic theory that reaches beyond the perceived limitsof the pragma-dialectical account while still exhibiting a debt to thatperspective and the early investigations with Woods. It is observed how Walton‘s model of fallacy is established in distinction to (...) its competitors,and its various problems and successes are discussed. (shrink)

Built in the centre of Copenhagen, and noted for its equestrian stairway, the Rundetaarn (Round Tower), was intended as an astronomical observatory. Part of a complex of buildings that once included a university library, it affords expansive views of the city in every direction, towering above what surrounds it. The metaphor of the towering figure, who sees what others might not, whose vantage point allows him to visualize how things fit together, and who has an earned-stature of respect and authority, (...) fits another Danish stalwart, Hans Vilhelm Hansen, whose contributions to the fields of informal logic and argument theory have earned the gratitude of his colleagues, and inspired this collection of essays, written to express the appreciation of its authors and of the many, many colleagues they represent. (shrink)

Perelman’s discussion about the distinction and relation between the rational and the reason-able could be seen as an attempt to bring forward a new understanding of rationality. In light of the concep-tion of situated reason, this paper argues that Perelman’s explication of the dialectic of the rational and the reasonable highlights the balance of universality and contexuality, and could contribute a fuller conception of rationality to establishing a solid philosophical foundation for Johnson’s informal logic.

When considering the interactions between rhetoric and argumentation, readers of this journal will no doubt be reminded of the seminal work of Henry W. Johnstone Jr. (1959; 1978) who gathered both concerns together in ways that were designed to engage philosophers and persuade them of the intellectual seriousness of both enterprises. He was, of course, a principal force among those who brought Chaïm Perelman’s work to the attention of audiences in North America, and he himself entered into deep and fruitful (...) dialogues with Perelman by way of reviewing the value that rhetoric brought to argumentation and logic, as well as to philosophy generally. His interest in philosophical argumentation prompted an early .. (shrink)

The paper critically investigates the pragma-dialectics of van Eemeren and Grootendorst, particularly the treatment of fallacies. While the pragma-dialectieians claim that dialectics combines the logical and rhetorical approaches to argumentation, it is argued here that the perspective relies heavily on rhetorical features that have been suppressed in the account and that overlooking these features leads to significant problems in the pragma-dialectical perspective. In light of these problems, the author advocates turning attention to a rhetorical account which subsumes the logical and (...) dialectical. (shrink)

The human being is an imitative animal. This statement, or description, resonates across time and cultures. Its familiarity derives from its repetition. It has, in terms appropriate to this discussion, a memetic quality. What Aristotle says is that "imitation is natural to man from childhood, one of his advantages over the lower animals being this, that he is the most imitative creature in the world, and learns first by imitation". The proof for this, Aristotle goes on to explain, lies in (...) the pleasure derived from imitation. And if pleasurable, it is natural; we are naturally imitative creatures.Among our imitative practices is the social practice of argumentation with all its rhetorical... (shrink)

The challenges of higher education can be stressful, anxiety-producing, and sometimes depressing for students. Such negative emotions may influence students’ attitudes toward assessment, such as whether it is perceived as acceptable to engage in plagiarism. However, it is not known whether any impact of negative emotions on attitudes toward plagiarism translate into actual plagiarism behaviours. In two studies conducted at two universities, we examined whether negative emotionality influenced plagiarism behaviour via attitudes, norms, and intentions as predicted by the theory of (...) planned behaviour. In both studies, negative affect predicted plagiarism intentions mediated by perceived norms, and intentions predicted plagiarism behaviour. These findings suggest that students’ negative emotionality is a risk for plagiarism engagement and that higher education institutions should support students’ emotional well-being, especially regarding assessment practices. (shrink)

The paper investigates the `logical space of reasons' as a social space in which rational agents operate and persons in an important sense come to be. Building from an investigation of argumentative agents in Aristotle's Rhetoric, I discuss both interior and exterior criteria for personhood and propose that the latter shows how argumentation, as a principal activity of the space of reasons, results in the particular kinds of persons we recognize there as rational agents. The overall analysis is indebted to (...) Robert Brandom's centralizing of the practice of giving and receiving reasons and the suggestive ways this can be applied to the realm of argumentation. (shrink)

This book defends antitheodicism, arguing that theodicies, seeking to excuse God for evil and suffering in the world, fail to ethically acknowledge the victims of suffering. The authors argue for this view using literary and philosophical resources, commencing with Immanuel Kant's 1791 "Theodicy Essay" and its reading of the Book of Job. Three important twentieth century antitheodicist positions are explored, including "Jewish" post-Holocaust ethical antitheodicism, Wittgensteinian antitheodicism exemplified by D.Z. Phillips and pragmatist antitheodicism defended by William James. The authors argue (...) that these approaches to evil and suffering are fundamentally Kantian. Literary works such as Franz Kafka'sThe Trial, Samuel Beckett's Waiting for Godot, and George Orwell's Nineteen Eighty-Four, are examined in order to crucially advance the philosophical case for antitheodicism. (shrink)

In a posthumous paper, Perelman discusses his decision to bring his theory of argumentation together with rhetoric rather than calling it an informal logic. This is due in part because of the centrality he gives to audience, and in part because of the negative attitude that informal logicians have to rhetoric. In this paper, I explore both of these concerns by way of considering what benefits Perelman’s work can have for informal logic, and what insights the work of informal logicians (...) might bring to the project of Perelman and Olbrechts-Tyteca. (shrink)

In his last book, David Armstrong sets out his metaphysical system in a set of concise and lively chapters each dealing with one aspect of the world. He begins with the assumption that all that exists is the physical world of space-time. On this foundation he constructs a coherent metaphysical scheme that gives plausible answers to many of the great problems of metaphysics. He gives accounts of properties, relations, and particulars; laws of nature; modality; abstract objects such as numbers; and (...) time and mind. (shrink)