Winter, Michael. Goguen Categories A Categorical Approach to L-fuzzy Relations / [electronic resource] : by Michael Winter. - Dordrecht : Springer, 2007. - v.: digital - Trends in Logic ; 25 . ISBN: 9781402061646 Subjects--Topical Terms: Philosophy (General)LogicPhilosophyLogic LC Class. No.: QA248 / W56 2007