  Even though in 13th-century terminist logic ‘significatio’ is seen as the foundation of all ‘properties of terms’ (proprietates terminorum), the generation of William of Sherwood and Peter of Spain is not particularly interested in the concept of signification. Significatio is shortly described as “presentation of some form to the intellect” (praesentatio alicuius formae ad intellectus)[44]  or as “representation of a thing by means of a conventional vocal expression” (rei per vocem secundum placitum repraesentatio) (Peter of Spain, Summule logicales, 1972, 79). But the detailed logical discussion starts right away with the concept of suppositio (supposition), i.e., from the capacity of substantive terms to stand for something in a propositional context.