The Logic of Legal Requirements Essays on Defeasibility

Jordi Ferrer Beltrán & Giovanni Battista Ratti: Legal Defeasibility: An Introduction
Part I: General Features of Defeasibility in Law and Logic
1: Jordi Ferrer Beltrán & Giovanni Battista Ratti: Defeasibility and Legality: A Survey
2: Carlos E. Alchourrón: On Law and Logic
3: Juliano S. A. Maranhão: Defeasibility, Contributory Conditionals, and Refinement of Legal Systems
4: Frederick Schauer: Is Defeasibility an Essential Property of Law?
5: Jorge L. Rodríguez: Against Defeasibility of Legal Rules
6: Giovanni Sartor: Defeasibility in Legal Reasoning
7: Rafael Hernández Marín: Defeasible Properties
Part II: Defeasibility and Interpretation
8: Pierluigi Chiassoni: Defeasibility and Legal Indeterminacy
9: Riccardo Guastini: Defeasibility, Axiological Gaps, and Interpretation
10: Brian H. Bix: Defeasibility and Open Texture
11: Daniel Mendonca: Exceptions
12: Ricardo Caracciolo: Acts, Normative Formulations, and Defeasible Norms
Part III: Defeasibility and the Conceptions of Law
13: José Juan Moreso: Legal Defeasibility and the Connection between Law and Morality
14: Manuel Atienza and Juan Ruiz Manero: Rules, Principles, and Defeasibility
15: W. J. Waluchow: Defeasibility and Legal Positivism
16: Bruno Celano: True Exceptions: Defeasibility and Particularism
17: Juan Manuel Pérez Bermejo: Principles, Conflicts, and Defeats: An Approach from a Coherentist Theory
18: María Cristina Redondo: Reasons for Action and Defeasibility
Part IV: Defeasibility and Adjudication
19: Fernando Atria: Legislation and Adjudication
20: Richard H. S. Tur: Defeasibility and Adjudication
21: Jonathan Remy Nash: Legal Defeasibility in Context and the Emergence of Substantial Indefeasibility
22: Bruce Chapman: Defeasible Rules and Interpersonal Accountability

Edited by Jordi Ferrer Beltrán, Associate Professor and Director of the Chair of Legal Culture, University of Girona, and Giovanni Battista Ratti, Juan de la Cierva Fellow in Law, University of Girona

Jordi Ferrer Beltrán is professor of Philosophy and Director of the Chair in Legal Culture at the University of Girona (Spain). He graduated in Law at the Autonomous University of Barcelona, and has a PhD in legal philosophy from the University 'Pompeu Fabra' (Barcelona).

Giovanni Battista Ratti is lecturer in Legal Philosophy in the University of Genoa (Italy). He graduated in law at the University of Genoa in 2002, and got a PhD in Legal Philosophy from the University of Milan (2006). He has been visiting professor in the Universities of Girona (Spain), 'Pompeu Fabra' of Barcelona (Spain), and Nacional de Mar del Plata (Argentina). He was awarded a Canadian Government Research Scholarship in 2004-2005, and a Spanish Government 'Juan de la Cierva' Fellowship in Law (2008-2011).

Contributors: 
Carlos E. Alchourrón was Professor of Law and Logic at the University of Buenos Aires (Argentina)
Manuel Atienza, Professor of Law at the University of Alicante (Spain)
Fernando Atria, Professor of Law at the University of Chile and the University Adolfo Ibáñez (Chile)
Brian Bix, Professor of Law at the University of Minnesota Law School (USA)
Ricardo Caracciolo, Professor of Law at the National University of Córdoba (Argentina)
Bruno Celano, Professor of Law at the University of Palermo (Italy)
Bruce Chapman, Professor of Law at the University of Toronto (Canada)
Pierluigi Chiassoni, Professor of Law at the University of Genova (Italy)
Jordi Ferrer Beltrán, Professor of Law at the University of Girona (Spain)
Riccardo Guastini, Professor of Law at the University of Genova (Italy)
Juan Ruiz Manero, Professor of Law at the University of Alicante (Spain)
Juliano S.A. Maranhão, Lecturer in Law at the University of São Paulo (Brazil)
Rafael Hernández Marín, Professor of Law at the University of Murcia (Spain)
Daniel Mendonca, Professor of Law at the University Nuestra Señora de la Asunción (Paraguay)
José Juan Moreso, Professor of Law at the 'Pompeu Fabra' University, Barcelona (Spain)
Jonathan Nash, Professor of Law at the Emory University (USA)
Juan Manuel Pérez Bermejo, Professor of Law at the University of Salamanca (Spain)
Giovanni B. Ratti, Lecturer in Law at the University of Genova (Italy)
Cristina Redondo, Professor of Law at the University of Genova (Italy)
Jorge L. Rodríguez, Professor of Law at the National University of Mar del Plata (Argentina)
Giovanni Sartor, Professor of Law at the University of Bologna and the European University Institute (Italy)
Frederick Schauer, David and Mary Harrison Distinguished Professor of Law, University of Virginia (USA)
Richard Tur, Benn Law Fellow, Oriel College, University of Oxford (United Kingdom)
Wilfrid Waluchow, Senator William McMaster Chair in Constitutional Studies at McMaster University (Canada)