Recent developments in legal logic

Studies on legal logic are one of the the most cultivated topics in legal theory during the last four decades. This is perhaps due to the fact that logics of norms are now a subject of several efforts driven by different research communities other than the traditional in legal and moral philosophy. In particular ICT scholars (especially in artificial intelligence and law, deontic logic in computer science, and normative multi-agent systems) have intensively worked on many questions relevant for legal reasoning. In this chapter we will briefly offer a survey of major recent achievements of this joint and interdisciplinary effort.