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词汇 Isomorphism of categories
分类 英语词汇 英语翻译词典
释义

Isomorphism of categories

英语百科

Isomorphism of categories

In category theory, two categories C and D are isomorphic if there exist functors F : CD and G : DC which are mutually inverse to each other, i.e. FG = 1D (the identity functor on D) and GF = 1C. This means that both the objects and the morphisms of C and D stand in a one to one correspondence to each other. Two isomorphic categories share all properties that are defined solely in terms of category theory; for all practical purposes, they are identical and differ only in the notation of their objects and morphisms.

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