In 1974, Winfried Fauser published his edition of Radulphus Brito’s commentary on the third book of Aristotle’s De anima. This contribution continues his project by providing an edition of Brito’s commentary on the first book and the first third of the second book. An analysis of this part of the commentary shows that Brito developed some original views that had an impact on the fourteenth-century commentary tradition.

This paper aims to assess medieval terminism, particularly supposition theory, in the development of Aristotelian thought in the Latin West. The focus is on what the present author considers the gist of Aristotle’s strategy of argument, to wit conceptual focalization and categorization. This argumentative strategy is more interesting as it can be compared to the modern tool known as ‘scope distinction’.