This dissertation argues that recent theoretical attempts to understand fallacious reasoning fail because these theories presuppose problematic accounts of the nature of argument. Current fallacy theories agree that a fallacy is a mistake, but differ wildly about what sort of mistake it is. Chapters one through three explore three very different suggestions. Chapter one is devoted to an examination of the oldest of the modern theoretical accounts of fallacious reasoning, what Hamblin calls the standard treatment. Chapter two begins with a (...) discussion of Finocchiaro's skeptical argument against the very possibility of a fallacy theory. It then turns to a discussion of van Eemeren and Grootendorst's pragma-dialectical treatment of fallacious reasoning as a possible response to Finocchiaro's skeptical challenge. Chapter three examines two epistemic responses to Finocchiaro's analysis: Fogelin and Duggan's frequency treatment and Wreen's mistaken inference treatment. The first three chapters set the stage for an alternative account of fallacies developed in chapter four. This alternative view of fallacious reasoning is consistent with Wright's recent work on the concept of an argument. It suggests that fallacious reasoning results from a kind of incompetency. Such failures of competency, however, are not nearly as common as traditional accounts of fallacious reasoning suggests. Moreover, the very possibility of being tempted by fallacious reasoning depends on our being very competent in normal cases. Chapter four ends with a discussion of some of the implications of this alternative theory of fallacious reasoning for the way we understand and teach argument and reasoning. (shrink)

Consider the proposition, "Informal logic is a subdiscipline of philosophy". The best chance of showing this to be true is showing that informal logic is part of logic, which in turn is a part of philosophy. Part 1 is given over to the task of sorting out these connections. If successful, informal logic can indeed be seen as part of philosophy; but there is no question of an exclusive relationship. Part 2 is a critical appraisal of the suggestion that informal (...) logic is applied epistemology. Part 3 examines the claim that informal logic has failed to penetrate into mainstream philosophy, and suggestions for amelioration are considered. (shrink)

The ad baculum is not a fallacy in an argument, but is offered instead of an argument to put an end to further argument. This claim is the basis for criticizing Michael Wreen's "neo-traditionalism," which yields misreadings of supposed cases of the ad baculum because of its rejection of any consideration of what the person using the ad baculum, or someone who refers to that use as an "argument," is doing. The paper concludes with reflections on the values that should (...) inform talk of a fallacy in an argument such as the one that Wreen is giving. (shrink)

In the appropriate contexts reasoning is a powerful tool for producing intersubjective agreement about what counts as the best answer to a question that generates inquiry; sometimes employing arguments can lead to agreement about what is the right answer. In this paper we hope to show, however, that unabashed optimism about the power of argument is misplaced. Such optimism rests on an implausible picture of the power of articulation. Sentences cashed out as reasons to believe another sentence is true cannot (...) bridge large gaps in substantive understanding. A failure to realize this fact, moreover, leads to an uncautious and unreflective optimism about the power of argument that ultimately threatens the very reasons-giving process. What is needed, then, is a much more modest sense of the role of argument. (shrink)

During the past thirty years the pragma-dialectical theorizing has developed in various steps from designing an abstract ideal model for critical discussion to examining strategic manoeuvring in the various argumentative activity types in which argumentative discourse manifests itself in argumentative reality. The response to the theoretical proposals that have been made includes, next to approval, also various kinds of criticisms. This paper explores the nature and thrust of these criticisms. In doing so, a distinction is made between criticisms concerning the (...) dialectical and the pragmatic dimensions of pragma-dialectics, the scope of the theory, the rhetorical dimension and moral quality, the treatment of the fallacies, and the epistemic dimension. (shrink)

How do Dutch people let each other know that they disagree? What do they say when they want to resolve their difference of opinion by way of an argumentative discussion? In what way do they convey that they are convinced by each other’s argumentation? How do they criticize each other’s argumentative moves? Which words and expressions do they use in these endeavors? By answering these questions this short essay provides a brief inventory of the language of argumentation in Dutch.

What is informal logic, is it ``logic" at all? Main contemporary approaches are briefly presented and critically commented. If the notion of consequence is at the heart of logic, does it make sense to speak about ``informal" consequence? A valid inference is truth preserving, if the premises are true, so is the conclusion. According to Prawitz two further conditions must also be satisfied in the case of classical logical consequence: (i) it is because of the logical form of the sentences (...) involved and not because of their specific content that the inference is truth preserving; (ii) it is necessary that if the premises are true, then so is the conclusion. According to the prevalent criteria of informal logic an argument is cogent if and only if (i) its premises are rationally Acceptable, (ii) its premises are Relevant to its conclusion and (iii) its premises constitute Grounds adequate for accepting the conclusion (the ``ARG" conditions according to Govier). The ARG criteria characterize a certain broad kind of consequence relation. We do not (in general) have truth preservence in cogent arguments but if the premises are acceptable and other criteria are met, then so is the conclusion. We can speak about form in a loose sense and finally, there is rational necessity of the grounding or support relation. So a certain broad notion of logical consequence emerges from this comparison. The norms of ARG are norms of elementary scientific methodology in which argument is seen as embodying reasoning within a process of inquiry or of belief formation in subject areas accessible to every informed intellectual. (shrink)

This paper is a critical analysis of three theories of fallacy, those of Ralph Johnson, of Jaakko Hintikka, and of Robert Fogelin and Timothy Duggan. Although the theories are very different from one another, all oppose the traditional, non-dialectical view of a fallacy as a mistaken inference. The theories are exposed and explained in detail, and then subjected to critical examination. For a variety of reasons, all are found seriously wanting. The mistakes of each suggest that it is better to (...) stay with the traditional view, at least if suitably refined and qualified. (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)

During the past thirty years the pragma-dialectical theorizing has developed in various steps from designing an abstract ideal model for critical discussion to examining strategic manoeuvring in the various argumentative activity types in which argumentative discourse manifests itself in argumentative reality. The response to the theoretical proposals that have been made includes, next to approval, also various kinds of criticisms. This paper explores the nature and thrust of these criticisms. In doing so, a distinction is made between criticisms concerning the (...) dialectical and the pragmatic dimensions of pragma-dialectics, the scope of the theory, the rhetorical dimension and moral quality, the treatment of the fallacies, and the epistemic dimension. (shrink)

This paper is divided in five sections. Section 11.1 sketches the history of the distinction between speech act with negative content and negated speech act, and gives a general dynamic interpretation for negated speech act. “Downdate semantics” for AGM contraction is introduced in Section 11.2. Relying on semantically interpreted contraction, Section 11.3 develops the dynamic semantics for constative and directive speech acts, and their external negations. The expressive completeness for the formal variants of natural language utterances, none of which is (...) a retraction, has been proved in Section 11.4. The last section gives a laconic answer to the question posed in the title of the paper. (shrink)