Among the options below there are 7 different partitions of the set . List them on the right according to the number of equivalence classes that each partition induces. Here, .

Choose from these collections of sets
  1. {0},{1},{2},...{12},{13}
  2. {0,1,2,...,8},{9,10,...,13}

  3. {even integers less than 13},
    {odd integers less than 13},{13}
  4. {0}, {3,6,9}, {1,4,7,10}, {2,5,8},
  5. {even positive integers less than 13},
    {odd positive integers less than 13},{0,13}
  6. {1},{2},...{12},{13},{14}
  7. {even positive integers less than 13},
    {odd positive integers less than 13},{0},{13}
  8. {0,13},{1,12},{2,11},{3,10},...,{6,7}
  9. {0,1,2,...,13}
  10. {1,2,...,5}, {6,8,...,12}
Partitions of S by increasing number of classes.
    Choose from these collections of sets
    1. {0},{1},{2},...{12},{13}
    2. {0,1,2,...,8},{9,10,...,13}

    3. {even integers less than 13},
      {odd integers less than 13},{13}
    4. {0}, {3,6,9}, {1,4,7,10}, {2,5,8},
    5. {even positive integers less than 13},
      {odd positive integers less than 13},{0,13}
    6. {1},{2},...{12},{13},{14}
    7. {even positive integers less than 13},
      {odd positive integers less than 13},{0},{13}
    8. {0,13},{1,12},{2,11},{3,10},...,{6,7}
    9. {0,1,2,...,13}
    10. {1,2,...,5}, {6,8,...,12}
    Partitions of S by increasing number of classes.