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[ "article:topic-guide", "authorname:hkwong", "license:ccbyncsa", "showtoc:yes", "sets" ]
Mathematics LibreTexts

4: Sets

  • Page ID
    8406
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    • 4.1: An Introduction to Sets
      A set is a collection of objects. The objects in a set are called its elements or members. The elements in a set can be any types of objects, including sets! The members of a set do not even have to be of the same type. For example, although it may not have any meaningful application, a set can consist of numbers and names.
    • 4.2: Subsets and Power Sets
      We usually consider sets containing elements of similar types. The collection of all the objects under consideration is called the universal set, and is denoted U.
    • 4.3: Unions and Intersections
      We can form a new set from existing sets by carrying out a set operation.
    • 4.4: Cartesian Products
    • 4.5: Index Sets