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Henry W. Johnstone's Still Unacknowledged Contributions To Contemporary Argumentation Theory, Jean Goodwin
Henry W. Johnstone's Still Unacknowledged Contributions To Contemporary Argumentation Theory, Jean Goodwin
Jean Goodwin
Given the pragmatic tum recently taken by argumentation studies, we owe renewed attention to Henry Johnstone's views on the primacy of process over product. In particular, Johnstone's decidedly non-cooperative model is a refreshing alternative to the current dialogic theories of arguing, one which opens the way for specifically rhetorical lines of inquiry.
Wigmore's Chart, Jean Goodwin
Wigmore's Chart, Jean Goodwin
Jean Goodwin
A generation before Beardsley, legal scholar John Henry Wigmore invented a scheme for representing arguments in a tree diagram, aimed to help advocates analyze the proof of facts at trial. In this essay, I describe Wigmore's "Chart Method" and trace its origin and influence. Wigmore, I argue, contributes to contemporary theory in two ways. His rhetorical approach to diagramming provides a novel perspective on problems about the theory of reasoning, premise adequacy, and dialectical obligations. Further, he advances a novel solution to the problem of assessing argument quality by representing the strength of argument in meeting objections.