Fuentes González, RamónBurillo López, PedroMayor, Gaspar2017-07-262017-07-262001https://academica-e.unavarra.es/handle/2454/24709Trabajo presentado a Eusflat 2001, European Society for Fuzzy Logic and Technology, Leicester (Reino Unido), 2001First, fuzzy membership functions for the assertion '[x,y] is a positive interval' are proposed and characterized via non-decreasing real maps. Last, using those functions together with the intervaldifference and the notion of average index, comparison indexes between intervals and the ones between fuzzy intervals are proposed.4 p.application/pdfengFuzzy orderingsFuzzy intervalsinfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/openAccess