On the Acceptability of Meta-arguments

In this paper we introduce a theory of meta-argumentation, by using Dung’s theory of abstract argumentation to reason about itself. Meta-arguments are generated from atomic arguments, and extensions of acceptable meta-arguments are based on Dung’s argumentation semantics. To illustrate our theory, we show how to represent Toulmin schemes in this theory by introducing meta-arguments using the Caminada labeling, and meta-arguments for support.