 For theoretical purposes, arguments may be considered as freestanding entities, abstracted from their contexts of use in actual human activities. But depending on one’s explanatory goals, there is also much to be gained from considering arguments as they in fact occur in human communicative practices. The term generally used for instances of exchange of arguments is argumentation. In what follows, the convention of using “argument” to refer to structures of premises and conclusion, and “argumentation” to refer to human practices and activities where arguments occur as communicative actions will be adopted.