He further argues that it is necessary to rethink traditional conceptions of argument, and to find a position that avoids the limitations of both the highly abstract approach of formal logic and the highly contextualized approaches of rhetoric and communication theory.".

The problem of defining ‘critical thinking’ needs a fresh approach. When one takes into consideration the sheer quantity of definitions and their obvious differences, an onlooker might be tempted to conclude that there is no inherent meaning to the term: that each author seems to consider that he or she is free to offer a definition that suits them. And, with a few exceptions, there has not been much discussion among proposers about the strength and weaknesses of the attempted definitions. (...) Therefore, the approach we will argue for here is a ‘meta-level approach’: proposers of new definitions of ‘critical thinking’ should begin by arguing that none of the current crop of definitions is viable. They should then state what kind of definition they will offer; then provide the definition and show that it satisfies the criteria stated. Our position is that new definitions should follow this meta-level approach, in addition to avoiding some common pitfalls. (shrink)

The issue of the relationship between formal and informal logic depends strongly on how one understands these two designations. While there is very little disagreement about the nature of formal logic, the same is not true regarding informal logic, which is understood in various (often incompatible) ways by various thinkers. After reviewing some of the more prominent conceptions of informal logic, I will present my own, defend it and then show how informal logic, so understood, is complementary to formal logic.

In her 1997 OSSA paper, Trudy Govier discusses in detail my thesis that arguers have dialectical obligations. In a 1998 paper she further examines this thesis to see whether it is viable and concludes that it faces serious problems. In this paper, I assess the state of the thesis in light of Govier's discussion of it. I urge that we have something to gain from the empirical turn--from investigating best practices. At the end, I take a step back to ask (...) what is really at issue here and how it connect s to other issues in the theory of argument. (shrink)

In this paper, we will explore two initiatives that focus on the importance of employing logical theories in educating people how to think and reason properly, one in Poland: The Lvov-Warsaw School; the other in North America: The Informal Logic Initiative. These two movements differ in the logical means and skills that they focus on. However, we believe that they share a common purpose: to educate students in logic and reasoning (logical education conceived as a process) so that they may (...) be able to apply their skills to analyze the issues in their society (logical culture as a result of logical education). The aim of the paper is to justify this claim by exploring research objectives and products that are common to both movements. (shrink)

This paper is an exercise in intellectual history, an attempt to understand how a specific term—”informal logic”— came to be interpreted in so many different ways. I trace the emergence and development of “informal logic” to help explain the many different meanings, how they emerged and how they are related. This paper is also, to some degree, an account of a movement that developed outside the mainstream of philosophy, whose origins lie in a desire to make logic useful (echoing Dewey).

Many argumentation theorists have adopted the view that argumentation may be approached from three different perspectives: the logical, the dialectical and the rhetorical—which I refer to as the Triumvirate.). According to Wenzel, the conceptual foundation for this Triumvirate is the distinction between argumentation as product, as process and as procedure. In this paper, I want to raise questions about the Triumvirate View and the Tripartite Distinction on which it is based.

In this overview article, we first explain what we take informal logic to be, discussing misconceptions and distinguishing our conception of it from competing ones; second, we briefly catalogue recent informal logic research, under 14 headings; third, we suggest four broad areas of problems and questions for future research; fourth, we describe current scholarly resources for informal logic; fifth, we discuss three implications of informal logic for philosophy in particular, and take note ofpractical consequences of a more general sort.

One of the distinctive features of rhetorical approaches to the study of argumentation is the emphasis placed on the role of the audience. Here one thinks immediately of the influence of Chaïm Perelman and of his and Lucie Olbrechts-Tyteca’s The New Rhetoric. There is something importantly right about an audience-centered approach to argumentation. Clearly if you wish to persuade an audience of your position (or gain the acceptance of your thesis), you must engage that audience and in some sense carry (...) them with you from your starting points to your conclusion. Still, when I read theorists who place strong emphasis on the role of audience (for example, Perelman and Olbrechts-Tyteca in The New Rhetoric .. (shrink)

Based on the author's thesis, Notre Dame. Bibliography: p. [216]-224.

One of the traditional ways in which we manage dissensus is by argumentation, which may be construed as the attempt of the proponent to persuade rationally the other party of the truth of some thesis. To achieve this, the arguer will often anticipate a possible objection. In this paper, I attempt to shed light on the normative aspect of the task of anticipating objections. I deal with such questions as: How is the arguer to anticipate objections? Which of the anticipated (...) objections are to be dealt with? What is required to deal successfully with an objection? (shrink)

In Argument, Inference and Dialectic Pinto argues that critical practice can furnish us with the necessary guidance to answer our questions about argument and inference; we do not need to develop a theory of argument/inference. Pinto’s provocative remarks raise questions about the appeal to practice, and recall problems that Toulmin encounters in development of his innovative theory in The Uses of Argument. In this paper, I juxtapose and reflect on these developments.

A central theme in the philosophy of sport literature is the definability of games. According to Thomas Hurka, and others, the argument presented by Bernard Suits in The Grasshopper refutes...

In this reflection piece, Ralph Johnson provides an account of the development of informal logic and how it intersected with the Critical Thinking Movement. Section I is an account of the origins of what Johnson calls the “Informal Logic Initiative.” Section II discusses how the Informal Logic Initiative connected with the Critical Thinking Movement at the Sonoma State University Conferences starting in 1981. Section III discusses the relationship between logic and critical thinking. Section IV describes “The Network (...) Problem,” which emerged for Johnson in the mid-1980s – largely as a result of his experiences at critical thinking conferences, especially the Sonoma State conference. Section V expresses some concerns about the current status of critical thinking as an educational idea and about the Critical Thinking Movement. (shrink)

This paper seeks to articulate and defend the principle that every argument is susceptible to criticism and hence the arguer must not seek to immunize the argument from criticism. Considerations both in support of, and opposed to, the principle are considered.

Harald Wohlrapp’s The Concept of Argument has made a significant contribution to the argumentation theory by proposing a new approach to our way of thinking about arguments and argumentation that in which he proposes a criterion of criterial validity: An thesis is valid, if there are no open objections against the justification offered for it. In this paper, I will focus on some issues and difficulties with that principle.

The notions of defeasibility and defeasible reasoning have generated a great deal of interest in various research communities. Here I want to focus on their use in logic and argumentation studies. I will approach these topics from the perspective of an informal logician who finds himself struggling with some issues that surround the idea of and the deployment of the concept of defeasibility. My intention is to make those struggles as clear as I can.

In this paper, I propose that the inquiry known as a/the theory of argument is the “invention” of Trudy Govier, using that term in its rhetorical sense, viz., the process of choosing ideas appropriate to the subject. In her paper, “Is a Theory of Argument Possible?” Govier used the idea of theory of argument to focus her discussion on problems in argument analysis and evaluation that came to light in the 1970s and 1980s. The idea of a theory of argument (...) was already there but Govier “discovered” it in the sense that she made its potential clear. (shrink)

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)