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  1. en.wikipedia.org › wiki › Set_theorySet theory - Wikipedia

    Set theory is the branch of mathematical logic that studies sets, which can be informally described as collections of objects. Although objects of any kind can be collected into a set, set theory — as a branch of mathematics — is mostly concerned with those that are relevant to mathematics as a whole.

  2. Set theory is the study of sets in mathematics. Sets are collections of objects. We refer to these objects as "elements" or "members" of the set. To write a set, one wraps the numbers in {curly brackets}, and separates them with commas. For example. the set holds 1, 2, and 3. Sets are also often referred to using capital roman letters such as , , .

  3. 8 de oct. de 2014 · Set Theory. First published Wed Oct 8, 2014; substantive revision Tue Jan 31, 2023. Set theory is the mathematical theory of well-determined collections, called sets, of objects that are called members, or elements, of the set. Pure set theory deals exclusively with sets, so the only sets under consideration are those whose members are also sets.

  4. Set theory is a branch of mathematics that studies sets, which are essentially collections of objects. For example \ {1,2,3\} {1,2,3} is a set, and so is \ {\heartsuit, \spadesuit\} {♡,♠}.

  5. 11 de jul. de 2002 · Set Theory. First published Thu Jul 11, 2002. Set Theory is the mathematical science of the infinite. It studies properties of sets, abstract objects that pervade the whole of modern mathematics.