The Logic of Legal Requirements Essays on Defeasibility

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)