Leo Groarke

Informal logic is an attempt to develop a logic that can assess and analyze the arguments that occur in natural language discourse. Discussions in the field may address instances of scientific, legal, and other technical forms of reasoning, but the overriding aim has been a comprehensive account of argument that can explain and evaluate the arguments found in discussion, debate and disagreement as they manifest themselves in daily life — in social and political commentary; in news reports and editorials in the mass media ; in advertising and corporate and governmental communications; and in personal exchange.

During the last decade, one source of debate in argumentation theory has been the notion that there are different modes of arguing that need to be distinguished when analyzing and evaluating arguments. Visual argument is often cited as a paradigm example. This paper discusses the ways in which it and modes of arguing that invoke non-verbal sounds, smells, tactile sensations, music and other non-verbal entities may be defined and conceptualized. Though some attempts to construct a ‘multimodal’ theory of argument are criticized, it advocates for an argumentation theory that makes room for visual arguing and for other non-verbal modes that have not been explored in depth. In the process, the paper provides a method for identifying the structure of multimodal arguments and argues that adding modes to our theoretical tool box is an important step toward a comprehensive account of argument

Both 'persuasion' and 'rational convincing' play a major role in argumentative discourse but only the latter is said to constitute argument and be amenable to traditional logical analysis. I argue against this assumption by showing that there are many paradigmatic instances of persuasion which are best understood as implicit arguments. So understood, acts of persuasion can conform to well recognized argument schemata and are best assessed accordingly. I shall argue that the attempt to distinguish arg ument and persuasion is fraught with difficulties. I contrast my conclusions with those of authors like Gilbert, Johnson, and Johnson and Blair.

This paper responds to two aspects of Ralph Johnson's Manifest Rationality (2000). The first is his critique of deductivism. The second is his failure to make room for some species of argument (e.g., visual and kisceral arguments) proposed by recent commentators. In the first case, Johnson holds that argumentation theorists have adopted a notion of argument which is too narrow. In the second, that they have adopted one which is too broad. I discuss the case Johnson makes for both claims, and possible objections to his analysis

Is restructuring an underhanded way to make the rich richer and the poor poorer? Or is it necessary, although bitter, medicine for an ailing economy? In The Ethics of the New Economy: Restructuring and Beyond, professionals from the fields of philosophy, ethics, management, as well as those representing the groups affected by restructuring, tackle thorny ethical issues. Referring to concrete case studies, these timely essays discuss a variety of topics, including justified and unjustified restructuring; employers’ obligations during the restructuring process; equity issues; the rise of part-time employment; the effects of restructuring on communities; the internal risks faced by restructuring corporations; deprofessionalization in health care; the consequences of restructuring in the developing world; philanthropy and cause-related marketing; corporate “judo” and restructuring; and responsible and irresponsible restructuring.