Practice question · Put in order
Arrange these sets in order of increasing size.
- The set of even prime numbers
- The set of vowels in the English alphabet
- The empty set
- The set of days in a week
Hints
- Start with the set that has no members at all.
- There is exactly one even prime, and five vowels.
Show the answer
- The empty set
- The set of even prime numbers
- The set of vowels in the English alphabet
- The set of days in a week
Why
Zero, one, five, seven. The even primes are a set with exactly one member, 2, which is a useful reminder that a condition can pick out a single object without that being a coincidence.
Practise Set Theory: Membership and Operations
The app has 4 more questions on this lesson, and keeps your place in the course. Philosophy I is free to start.
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