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  "body": "\n## Summary\n\nIn mathematics, especially in order theory, the **greatest element** of a subset $S$ of a [[partially ordered set|0QV2JS9RJ3]] (poset) is an element of $S$ that is greater than every other element of $S$. The term **least element** is defined dually, that is, it is an element of $S$ that is smaller than every other element of $S.$\n",
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