Block Argumentation

We advance the point of view: an argument as an argumentation and vice versa, to formulate Block (Bipolar) Argumentation (BBA), a bipolar argumentation theory that recursively instantiates an abstract argument with a bipolar argumentation. Multiple occurrence of the same argument(ation) can become issues in such a self-similar argumentation theory, for which we consider a graphical (syntactic) constraint, in relation to which we define its acceptability semantics. For some highlight, acceptability of unattacked arguments is not always warranted once this kind of a constraint must be taken into account.