Defining qualified reasoning as reasoning containing such loose qualifying words as 'probably,' 'usually,' 'probable, 'likely,' 'ceteris paribus,' and 'primafacie, Ennis argues that typical cases of qualified reasoning, though they might be good arguments, are deductively invalid, implying that such arguments…

In this paper a hybrid model of argument from analogy is presented that combines argumentation schemes and story schemes. One premise of the argumentation scheme for argument from analogy in the model claims that one case is similar to another.…

From early modernity, philosophers have engaged in skeptical discussions concerning knowledge of the existence, state, and standing of other minds. The analogical move from self to other unfolds as controversy. This paper reposes the problem as an argumentation predicament and…

Some proponents of epistemological approaches to argumentation (Biro, Siegel, Lumer, Goldman) assume that it should be possible to develop non-relative
criteria of argument evaluation. By contrast, this paper argues that any evaluation of an argument depends (a) on the cognitive…

In Vol. XI, No.1, this journal announced an argument analysis contest. Two eminent colleagues agreed to serve as judges-Professor Henry W. Johnstone, Jr. and Professor Michael Scriven. In short order, four entries were received and sent off to the judges,…

We contend that it is possible to argue reasonably for and against arguments from classifications and definitions, provided they are seen as defeasible (subject to exceptions and critical questioning). Arguments from classification of the most common sorts are shown to…

This paper attempts two things: (a) to give the reader a very general idea of the main outlines of what Govier has to say both about social and political trust and about trust in personal relationships, and (b) to present…

Researchers in science education have converged on the viewthat argumentation can be an effective intervention for promoting knowledge construction in science classrooms.However, the impact of such interventions may be mediated by individuals’ task goals while arguing. In argumentative discourse, one…

Just as political theorists have long argued that democracy is viable only in communities of certain sizes and shapes, perhaps epistemologists should also entertain the idea that knowledge is possible only within certain social parameters-ones which today's world may have…