Abstract

The present paper aims to reconsider our approaches to the suppositio theory (in the particular case of Peter of Spain`s Summaries of logic) in light of a new hypothesis of the double nature1 of medieval logic. Starting from the existing points of view, i.e. the theory of suppositio as a theory of reference and suppositio as a theory of an untranslatable, this paper will examine their underlying commitments to the nature of medieval logic. Such an analysis will entail for the former approach a commitment to a formal nature, while for the latter to a non-formal one. The possibility of a new approach emerges when both natures can be traced in Peter`s theory.