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  "body": "\n## Summary\n\nSee also × in § Arithmetic operators.\n\nDenotes the [[Cartesian product|09CEDJYBKP]] of two sets. That is, $A\\times B$ is the set formed by all pairs of an element of $A$ and an element of $B$.\n\nDenotes the direct product of two mathematical structures of the same type, which is the [[Cartesian product|09CEDJYBKP]] of the underlying sets, equipped with a structure of the same type. For example, direct product of rings, [[direct product of topological spaces|0GBG8B49AA]].\n\nIn category theory, denotes the direct product (often called simply *product*) of two objects, which is a generalization of the preceding concepts of product.\n",
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