最終更新日：2024/08/08

(set theory) For a set X, the Cartesian product X² = X × X. / (category theory) A pullback.

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Cartesian square

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元となった辞書の項目

Cartesian square

noun

(set theory) For a set X, the Cartesian product X² = X × X. / (category theory) A pullback.

The Cartesian square of a set X is the set of all ordered pairs (x, y) where x and y are elements of X.

意味（1）

(set theory) For a set X, the Cartesian product X² = X × X.

意味（2）

(category theory) A pullback.