ABSTRACT
This chapter presents the general nature of the field of Anselm’s dialogue and then to inspect in some detail the logical significance of yet another argument from regress which occurs in the same work. The doctrine of suppositio is one of the central points of interest in contemporary studies of the history of medieval logic. The complaint that modern logic cannot analyse certain theses or forms of expression which occur in medieval logic has become a constantly recurring commonplace in the recent histories of logic. In fact the view of logic propounded is exactly the one adopted by S. Lesniewski. Psychologically, it is about the person who is doing the understanding, epistemologically it may raise questions as to the presuppositions demanded by the person’s capacity to understand or think, while it is of logical interest in various ways.
