The Lisbon Legal Theory (LLT) is a research cluster within the Lisbon Public Law Research Centre. Its primary purpose is to develop research and promote a public and academic debate mainly over different subjects related to Legal Theory, but also in other connected areas, such as Legal Philosophy, Moral Philosophy, Philosophy of Language or Deontic Logic. Inserted within the analytic approach to law and normative systems in general, the LLT is formed by scholars and researchers from the University of Lisbon, comprising as well fellows researchers and other non-permanent academics.