Brik, LoubnaSaoti, SihemDirector: Saadaoui, Kheir2023-06-262023-06-262023-06-10http://dspace.univ-msila.dz:8080//xmlui/handle/123456789/39800In this memory, We did study the concept of fuzzy lattice and their properties and intuitionistic fuzzy lattice. In addition, we did mentioned some characterizations of ideals and filters. After that, we did compare between fuzzy lattices and intuitionistic fuzzy lattices. Then we did cited the benefits and drawbacks of fuzzy lattices and intuitionistic fuzzy lattices.enFuzzy ordering relation, fuzzy lattice , fuzzy ideal , fuzzy filter, intuitionistic fuzzy ordering relation, intuitionistic fuzzy lattice , intuitionistic fuzzy ideal , intuitionistic fuzzy filter.Thesis