The opposite category reverses every morphism while retaining the same objects. Limits in are colimits in , and conversely.
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The term "opposite category" can be interpreted in various contexts depending on the field of study or discussion. Here are a few possible interpretations: 1. **Mathematics**: In category theory, a branch of mathematics, the opposite category (or dual category) of a category \( C \) is constructed by reversing the direction of all morphisms (arrows) in \( C \).