He is Professor of Philosophy of Law at the University of Alicante and permanent professor at various master's programs on legal arguments and mediation in imparting the "Argumentation and Negotiation" module. He is a member of the editorial board of the journal Doxa. Notebooks of Philosophy of Law since its foundation. His publications include books on the repeal. Legal dynamic test (1995), The General Theory of the sources of law and legal order (2000), The Constitution of the constitutional state (2004), Fragments for a theory of the constitution (with M. Atienza and Ruiz Manero J., 2007) and law and argument (2008). He is the author of many articles and book chapters among which include "Judicial Ethics and Rule of Law" (2013), "Four modes of debate" (2013), "Constitutional Interpretation. Some theoretical alternatives and a proposal "(2012)," The Impossible constitutionalism Luigi Ferrajoli '(2011), "Having a constitution, given a constitution and living constitution' (2008)," Presumptions, truth and procedural rules "(2006 ) and "Independence and impartiality of judges and legal argument" (1997).