A Novel Understanding of Legal Syllogism as a Starting Point for better Legal Symbolic AI Systems
Axel Adrian
Michael Kohlhase
Max Gabriel Rapp
Zitiervorschlag: Axel Adrian / Michael Kohlhase / Max Gabriel Rapp, A Novel Understanding of Legal Syllogism as a Starting Point for better Legal Symbolic AI Systems
, in: Jusletter IT 27. Mai 2021
In the two most relevant categories of legal systems, the codified law systems and the case law systems, legal argumentation and legal reasoning are at the heart of legal theory and practice. Here we show that the concept of legal syllogism can be used as a starting point in both legal systems for new computational models of legal reasoning. We argue that legal syllogisms are not merely analytic logical inference rules but involve ampliative analogical inference. We aim to operationalize our account in terms of Context Graphs, i.e. internally consistent logical theories linked through rigorously defined analogical relations called views and argumentative relations such as attack and support.
Inhaltsverzeichnis
1. Introduction
2. Legal Theory: Foundations and the Role of Syllogism
2.1. Legal Reasoning and Argumentation – Legal Syllogism
2.2. Legal Interpretation of codified law and statutes (Auslegung)
2.3. Creation/Development of new law
2.4. Limitations of common legal theory
3. Conclusion: Legal Theory and Legal-Tech
4. References
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