Unattacked Set

A set E⊆AE \subseteq A is unattacked iff no argument in A∖EA \setminus E attacks an argument in EE, i.e. E−E^- ⊆E\subseteq E.

Reference

Baroni, P. & Giacomin, M. (2007). On Principle-Based Evaluation of Extension-Based Argumentation Semantics. Artificial Intelligence, 171(10–15), pp. 675–700.

Referenced by