Sandra Villata

The purpose of this article, which takes the form of a dialogue between a vegetarian and a meat eater, is twofold. On the one hand, we argue for a general characterisation of moral value in terms of well-being and suffering. On the other hand, on the basis of this characterisation, we argue that, in most cases, the moral value attached to the choice of eating meat is negative; in particular, we defend this claim against a number of objections concerning the nature of animal suffering, its moral value, and the moral responsibility of meat eaters

In this paper, we introduce the methodology and techniques of meta-argumentation to model argumentation. The methodology of meta-argumentation instantiates Dung’s abstract argumentation theory with an extended argumentation theory, and is thus based on a combination of the methodology of instantiating abstract arguments, and the methodology of extending Dung’s basic argumentation frameworks with other relations among abstract arguments. The technique of meta-argumentation applies Dung’s theory of abstract argumentation to itself, by instantiating Dung’s abstract arguments with meta-arguments using a technique called flattening. We characterize the domain of instantiation using a representation technique based on soundness and completeness. Finally, we distinguish among various instantiations using the technique of specification languages.