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It is a matter of quasi-consensus among argumentation researchers that engaging in argumentation sets the scene for changes in people’s views. However, the actual process by which such changes occur has not yet been entirely understood. This article represents an effort towards understanding how processes of knowledge building and transformation evolve in argumentation. To achieve this goal, it outlines a unit of analysis designed to capture the process by means of which knowledge is continuously updated through argumentation. Then, the analysis of fragments of people’s argumentation illustrates how this unit of analysis can be utilized. It also provides an account of some of the ways in which reasoning is organized in face-to-face argumentation as well as in the speaker’s own discourse.
Selma Leitão (Sat,) studied this question.