Buone e cattive fantasie: la riflessione sugli enti inesistenti nella logica di Bartholomaeus Keckermann

The paper deals with the discussion of non existing and of impossible entities in the Logic of Bartholomaeus Keckermann (1571-1609).This paper has been originally published in Metaxù n. 13, maggio 1992, pp. 80-104, and it has not been revised after 1992. Standard disclaimers apply: Some corrections added to the printed proofs and present in the printed version may be missing from this electronic version. Therefore, for all purposes the reference text is the printed one. The HTML conversion is the result of an automated procedure and may have produced some errors and misformatting