On September 08-11th of 2009, the
Brazilian Society of Computational and Applied Mathematics (SBMAC) promoted the first mini-symposium on the "Foundations and Applications of Fuzzy Logic" as a satellite event of the National Congress on Computational and Applied Mathematics, which was held in Cuiabá - MT. At that time about 2.000 CNPq Lattes CVs involving the keyword "Fuzzy" were found. With this scenario, the
Thematic Committee on Fuzzy Systems, was created in the Society, which induced the organization of an event with a national character around the theme "Fuzzy". This event was called: First Brazilian Congress on Fuzzy Systems (I Congresso Brasileiro em Sistemas Fuzzy - I CBSF; in Portuguese), substituting the III SALF which had already been planned.