exponential object
A female given name from Italian
(category theory) An object which indexes a family of arrows between two given objects in a universal way, meaning that any other indexed family of arrows between the same given pair of objects must factor uniquely through this universally-indexed family of arrows.
plural of raison d'être
(biology) The liquid enclosed inside the vacuole of a plant cell.
多くのデカルト閉圏では、指数対象 B^A は A から B への射の族を普遍的に索引する分類子として機能し、対象 X によって索引付けされた A→B の任意の射の族はこの指数対象を通して一意に因子分解される。
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