Defence

A set E⊆AE \subseteq A defends a∈Aa \in A iff for every b∈Ab \in A with (b,a)∈R(b,a) \in R there is c∈Ec \in E with (c,b)∈R(c,b) \in R.

Reference

Dung, P.M. (1995). On the Acceptability of Arguments and its Fundamental Role in Nonmonotonic Reasoning, Logic Programming and n-Person Games. Artificial Intelligence, 77(2), pp. 321–357.

Referenced by