THE problem of universals has been with us at least since the time of Plato and it is no surprise that the first solution was what can be termed a realist one. Not a few have argued that there is something commonsensical about the claim that we call some things by a common term because it seems quite plausible that there are kinds of things and that they are not entirely the creations of our minds. The path of realism has (...) been trodden by many notables, and current literature calls attention to the fact that, in spite of all its problems, the realist view still has its own appeal. This is true now and is even more easily documented for the thirteenth century when the question of the ontological status of universals was fiercely debated in the young universities of Europe. Roger Bacon was beginning his teaching career at the University of Paris in the early 1240s and an inspection of his works reveals that on three occasions he entered the debate ex professo, namely, in his Questiones supra libros prime philosophie Aristotelis, in his Questiones altere supra libros prime philosophie Aristotelis, and in the Liber primus communium naturalium Fratris Rogeri. Hence it is in these that we should look to discover whether he was a nominalist, a moderate realist, or an extreme realist, or indeed whether he developed a position uniquely his own. (shrink)

IT IS CERTAINLY THE CASE that twelfth- and thirteenth-century treatises on logic represent in great part attempts to represent the Organon, Aristotle’s books on logic, by rearranging the material, adding clarifications, and sometimes breaking new ground as in the case of the treatise on the property of terms. Thus when Roger Bacon is writing his Summulae dialectices around 1252, he is confronted by the problem of what to do with the material on the classification of statements into single or multiple, (...) and simple or composed in chapter 5 of Aristotle’s On Interpretation. There, apropos of the two divisions and interspersed among other claims, we read the following. (shrink)

Two persons have been proposed as the author of the Summa Lamberti, a thireenth-century treatise on logic. Franco Alessio takes him to be the Auxerre Dominican Lambert of Ligny-le-Châtel, and he basis his claim on Dominican sources from the fourteenth to the nineteenth centuries. Recently, Alain de Libera has presented a counter-proposal: the author was Lambert of Lagny, a secular cleric at the time of the composition, who afterwards became a Dominican. This claim is based on the acta of the (...) counts of Champagne and a document of Pope Urban IV. I conclude that, given the present evidence, de Libera’s case rests on more historically sound data, but that to arrive at this conclusion one must impeach the Dominican sources (not done by de Libera) and take into consideration additional data from the research of Michèle Mulchahey on the introduction of logic into the Dominican curriculum. (shrink)