Set

Fundamental mathematical concept related to the notions of belonging or inclusion
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mathematical set
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Set theory
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8/9/2001
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In mathematics, a set is a well-defined collection of distinct objects, considered as an object in its own right. For example, the numbers 2, 4, and 6 are distinct objects when considered separately, but when they are considered collectively they form a single set of size three, written {2, 4, 6}. The concept of a set is one of the most fundamental in mathematics. Developed at the end of the 19th century, set theory is now a ubiquitous part of mathematics, and can be used as a foundation from which nearly all of mathematics can be derived.
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Set (math)
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Number sets
Set (mathematical)
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Number set
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