We have seen the basics of abstract argumentation theory, and how to create arguments from knowledge bases using ASPIC-.

• We are going to introduce the assumption-based argumentation framework (ABA).
• This framework is similar to ASPIC but it is based on “assumptions” and contraries.
• While ASPIC emphasizes sub-arguments, this notion does not play a role in ABA.
• ABA has been used for non-monotonic reasoning, preferences, decision, etc.

4A.1 The ABA framework (Toni 2014)

4A.2 Reasoning with ABA frameworks

4A.3 Examples of the ABA framework (Toni 2014)

4A.4 Size and Complexity (Lehtonen 2023)

4A.5 Transforming ABA frameworks (Lehtonen 2023)

4A.6 Conclusion