Groupoid

Rarity: Common

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At a glance

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Notion

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Science and technology

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What Wikipedia says

In mathematics, especially in category theory and homotopy theory, a groupoid (less often Brandt groupoid or virtual group) generalises the notion of group in several equivalent ways. A groupoid can be seen as a:

Excerpt from the Wikipedia article “Groupoid”, under the CC BY-SA 4.0 license. Read the article on Wikipedia