David Wong has introduced the notion of moral ambivalence in the philosophical debate. In this paper, we focus on the nature of moral ambivalence and on its interpretation. We hold that moral ambivalence is not a phenomenon that provides evidence for relativism, as Wong claims, and as relativism is usually understood. Rather, ambivalence denotes a pluralist attitude, an attitude characterized by the thought that two different, even incompatible, courses of action can both be permissible when considered from a single perspective. (...) We distinguish pluralism from relativism and argue that it is more appropriate to consider Wong’s position as an objectivist pluralism. We also highlight the similarity between Wong and Hume’s accounts. (shrink)

In this paper, we argue for an objectivist pluralist interpretation of Hume’s moral philosophy. We begin by approaching the pluralist/relativist distinction in aesthetics. Then we move to ethics, and present some reasons which justify considering Hume a normative pluralist, and, in particular, an objectivist pluralist. Our argument will make use of Hume’s idea that there are foru sources of value, and of his notion of artificial lives/moralities.

My purpose in this paper is to show the evolution of the relationship between nonmonotonic logic and logic programming. I think that there are two periods in the evolution of this relationship. The first one isthe point of contact between these two fields that had been developed independently. In the second period, as I will show, the motivation to propose three-valued nonmonotonic logic comes from the study of the relationship between these two fields, and not from the study of nonmonotonic (...) logic itself. (shrink)