 Wyclif defines supposition as the signification of one categorematic extreme of a proposition (subject or predicate) in relation to the other extreme (De logica, chap. 12, vol. I, p. 39). This definition, which is drawn from Burley’s De suppositionibus (composed in 1302), sounds partially different from the standard definition of supposition, as it seems to somehow equate signification and supposition, since supposition is considered as a particular kind of signification. On the contrary, according to the most common view, which went back to Peter of Spain’s Summulae logicales, signification and supposition of terms were clearly distinct functions, inasmuch as the latter presupposed the former, but it was a proprietas terminorum (a term property) totally different from it. In fact, (1) signification consisted in the relation of a linguistic sign to what it signifies apart from any propositional context; (2) a word capable of standing for something else or for itself in a proposition had first to have signification; (3) a term only had supposition in a propositional context; and (4) the kind of supposition a term had depended on its propositional context. In any case, in a traditional realist perspective, supposition served to tell us which things are involved in the truth-conditions of a given sentence: whether they are expressions, real universals, or individuals.