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Revista de Matemática Teoría y Aplicaciones
Print version ISSN 1409-2433
Abstract
ACUNA ORTEGA, Osvaldo. K-finite decidable objcts and finite cardinals in an arbitrary topos. Rev. Mat [online]. 2012, vol.19, n.1, pp.1-6. ISSN 1409-2433.
In an elemetary topos ", we prove that the class of K-finite decidable objects is the same to the class of finite cardinals in E if and only if every K-finite decidable object X such that X→1 is epic, then 1→X is split epic
Keywords : Topoi; K-finite objects; decidable objects.