Lisbon Legal Theory
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.
Events
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Theory and Philosophy of Law
Workshop
18 June 2026
a 26 March 2026
Summer School’26 | On Legal Reasoning & Artificial Intelligence
Theory and Philosophy of Law
LLT Permanent Workshop
17 April 2026
Rationalising Obligations
Theory and Philosophy of Law
LLT Permanent Workshop
4 March 2026
The Unbearable Interpretive Significance of the Theory of Evidence. On the Separation Fallacy
Theory and Philosophy of Law
Conference
27 February 2026
Direito, Razões e Autoridade: uma Homenagem a Joseph Raz
Theory and Philosophy of Law
Conference
23 February 2026
III Encontro Bilateral Anual | Lisboa – Milão
Theory and Philosophy of Law
LLT Permanent Workshop
12 December 2025
The man who wore two hats. On the problem of objectivity and the relation between Hans Kelsen’s theory of democracy and his theory of norms
Publications
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scientific outputs
You can find here all LLT publications
Theory and Philosophy of Law
Year: 2024
LPL Authors: Jorge Silva Sampaio, Pedro Moniz Lopes
Actualizando el debate sobre “el derecho como plan compartido” de Shapiro
Theory and Philosophy of Law
Year: 2024
LPL Authors: Pedro Moniz Lopes, Raquel Franco
Evolutionary theory and legal adjudication: Substrata for a predictive theory of legal science
Theory and Philosophy of Law
Year: 2023
LPL Editors: Gonçalo Fabião, Sara Azevedo
A propósito dos 60 anos d’O Conceito de Direito de Hart
Theory and Philosophy of Law
Year: 2022
LPL Authors: Pedro Moniz Lopes
The expression of norms as a speech act: assessing the explanatory power of theories of interpretation
Theory and Philosophy of Law
Year: 2022
LPL Authors: Ana Escher
The nature and value of vagueness in the law (book review)
Theory and Philosophy of Law
Year: 2022
LPL Authors: Pedro Moniz Lopes
Implications of genericity on the (in)consistency and (in)completeness of legal systems
News
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