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Results for criterions: Keyword: Category Modify search criterions 2 matches Title From categories to categorization Author BOLDINI Pascal Keywords Categorization, Category, Internal logic, Piaget (Jean), Sketch, Toposes Topic None Abstract This tribute is the opportunity for a melancholic return to topics with which we were occupied, Jean-Pierre Barthélemy and myself, during the 90’s at Télécom Bretagne. It is hardly surprising that we focused on the relationship between natural categories and logic, given that Jean-Pierre was trained within the French school of category theory, and that his first papers belonged to the growing field of categorical logic. Analysing the research pursued under his benevolent direction, I will trace the influence of this specific approach to logic and structures. Number 197, Spring 2012, special issue: Categories, classification, complexity, consensus ... Around Jean-Pierre Barthélemy's works Language   French Read the article Title Dialectical boundaries Author DUGOWSON Stéphane Keywords Category, Fuzzy, Graph, Lattice, Pretopology, Topology Topics Graphs, Lattices, Logic, Topology Abstract The aim of this paper is to propose, under the generic term of dialectical boundaries, a generalization of the concept of boundary, better suited to discrete spaces than the classical topological one. We shall consider first the case of crisp spaces then, after recalling the recent works about the formalization of fuzzy boundaries, we propose a partial typology of the various definitions that they contain, based on the concepts of fuzzy dialectical spaces and of spaces with fuzzy boundaries. Number 177, Spring 2007 Language   French Read the article Users rights : The entire journal is licensed under a Creative Commons license