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Lawvere theory : ウィキペディア英語版 | Lawvere theory In category theory, a Lawvere theory (named after American mathematician William Lawvere) is a category which can be considered a categorical counterpart of the notion of an equational theory. ==Definition==
Let be a skeleton of the category FinSet of finite sets and functions. Formally, a Lawvere theory consists of a small category ''L'' with (strictly associative) finite products and a strict identity-on-objects functor preserving finite products. A model of a Lawvere theory in a category ''C'' with finite products is a finite-product preserving functor . A morphism of models where ''M'' and ''N'' are models of ''L'' is a natural transformation of functors.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Lawvere theory」の詳細全文を読む
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