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In category theory, a branch of mathematics, a **closed category** typically refers to a category that has certain characteristics related to products, coproducts, and exponentials. However, the term "closed category" can have different interpretations, so it's important to clarify the context. One common context is in the classification of categories based on the existence of certain limits and colimits. A category \( \mathcal{C} \) is said to be **closed** if it has exponential objects.

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  1. Category theory
  2. Fields of abstract algebra
  3. Fields of mathematics
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