La tensión entre dos concepciones de los sistemas jurídicos: Estudio en homenaje a Carlos Eduardo Alchourrón

carlos eduardo alchourrón and eugenio bulygin have made contributions of fundamental importance for the development of the theory of legal systems. their ideas reflex an evolution from a static to a dynamic vision of such systems. the main purpose of the present paper is to show that, notwithstanding, there exists a certain tension in the thesis defended by alchourrón and bulygin between two different conceptions of a legal system. on the one hand, a conception related to the reconstruction of the set of relevant norms to solve a certain case; on the other, a conception related to a satisfactory characterization of law as an institution. the different concerns of each of those reconstructions force to refine certain ideas associated with the dynamics of law to avoid derivations which appear incompatible with ordinary legal intuitions.