In mathematics, specifically category theory, a thin category, or posetal category, is a category whose homsets each contain at most one morphism. As such, a thin category amounts to a preordered class (or a preordered set, if its objects form a set).
In mathematics, specifically category theory, a thin category, or posetal category, is a category whose homsets each contain at most one morphism. As such, a thin category amounts to a preordered class (or a preordered set, if its objects form a set).
Source: Wikipedia "Thin category" · CC BY-SA 4.0
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