{
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  "body": "\n## Summary\n\nIn [[combinatorial mathematics|0JKW7W7XFR]], a **Latin rectangle** is an $r \\times n$ [[matrix|0VD9ZSWWJG]] (where $r \\le n$), using $n$ symbols, usually the numbers $1, 2, 3, ..., n$ or $0, 1, ..., n - 1$ as its entries, with no number occurring more than once in any row or column.\n",
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  "name": "Latin rectangle",
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