Which of the following sets is not a subset of {1, 2, 3, 4}?

Practice Questions

Q1
Which of the following sets is not a subset of {1, 2, 3, 4}?
  1. {1, 2}
  2. {2, 3, 4}
  3. {5}
  4. {1, 2, 3}

Questions & Step-by-Step Solutions

Which of the following sets is not a subset of {1, 2, 3, 4}?
  • Step 1: Understand what a subset is. A subset is a set that contains only elements from another set.
  • Step 2: Look at the original set, which is {1, 2, 3, 4}. This set contains the numbers 1, 2, 3, and 4.
  • Step 3: Check the given sets to see if they only contain elements from {1, 2, 3, 4}.
  • Step 4: Identify any set that has elements not in {1, 2, 3, 4}. For example, {5} has the number 5, which is not in the original set.
  • Step 5: Conclude that {5} is not a subset of {1, 2, 3, 4} because it contains an element (5) that is not in the original set.
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