Discrete category

In mathematics, in the field of category theory, a discrete category is a category whose only morphisms are the identity morphisms:

Since by axioms, there is always the identity morphism between the same object, we can express the above as condition on the cardinality of the hom-set

单词	Discrete category
释义	Discrete category 英语百科 Discrete category In mathematics, in the field of category theory, a discrete category is a category whose only morphisms are the identity morphisms: Since by axioms, there is always the identity morphism between the same object, we can express the above as condition on the cardinality of the hom-set
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