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Set theory

Math · Discrete Math

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About this practice set

Set theory is a Math quiz (Discrete Math) with 30 multiple-choice questions. Pick an answer and read the explanation that follows.

What you will be asked

  • A set is a collection of:
  • The union A ∪ B contains:
  • The intersection A ∩ B contains:
  • The empty set has:
  • The complement of A is:
  • Let A = {5, 7, 8, 9, 12} and B = {1, 5, 10}. What is A ∩ B?
  • The universal set is U = {1, 2, 3, 5, 6, 7, 8, 10, 12} and A = {1, 2, 3, 7, 8}. What is the complement of A (the elements of U that are not in A)?
  • Let A = {4, 8, 12}. Which of these numbers is an element of A (belongs to A)?

…and 22 more.