Complex Cases and Legitimation Inference: Extending the Toulmin Model to Deliberative Argument in Controversy [chapter]

G. Thomas Goodnight
Arguing on the Toulmin Model  
A warrant may be grounded in personal testimony, technical method, or public consensus. The justified choice of a field, in authorizing the warrant and providing further extension of support constitutes a legitimation inference. Complex cases evolve when there are a surplus of good reasons as potential support for a claim, and a choice must be made either to select a single ground for the claim or to advance independently valid reasons, differentially grounded, as support. Complex cases enter
more » ... e realm of controversy when not all relevant grounds offer the same degree of support or point in the same direction, and a choice to select some grounds and discard others must be justified. The justification of the selection of grounds constitutes a legitimation warrant-a missing element of the Toulmin model.
doi:10.1007/978-1-4020-4938-5_4 dblp:series/argulib/Goodnight06 fatcat:l7saxodt3vbtrh7tbu4pfcvaay