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In the mathematical field of category theory, the product of two categories C and D, denoted C × D and called a product category, is an extension of the concept of the Cartesian product of two sets. Product categories are used to define bifunctors and multifunctors.

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  • In the mathematical field of category theory, the product of two categories C and D, denoted C × D and called a product category, is an extension of the concept of the Cartesian product of two sets. Product categories are used to define bifunctors and multifunctors. (en)
  • Категория произведения — категория, получаемая из исходных категорий посредством их произведения — операции, обобщающей понятие декартова произведения множеств. (ru)
  • 數學分支範疇論中,兩個範疇之積,是集合的笛卡兒積的延申。乘積以表示,其結果又稱積範疇(英語:product category)。定義雙函子及多函子時,要用到積範疇。 (zh)
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  • product+category (en)
dbp:title
  • Product category (en)
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  • In the mathematical field of category theory, the product of two categories C and D, denoted C × D and called a product category, is an extension of the concept of the Cartesian product of two sets. Product categories are used to define bifunctors and multifunctors. (en)
  • Категория произведения — категория, получаемая из исходных категорий посредством их произведения — операции, обобщающей понятие декартова произведения множеств. (ru)
  • 數學分支範疇論中,兩個範疇之積,是集合的笛卡兒積的延申。乘積以表示,其結果又稱積範疇(英語:product category)。定義雙函子及多函子時,要用到積範疇。 (zh)
rdfs:label
  • Product category (en)
  • Категория произведения (ru)
  • 積範疇 (zh)
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