Question

Which of the following does not represent the set of integers from 1 to 12?

{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

{1, 2, 3, …, 10, 11, 12}

{1, 2, 3, 4, …}

{integers from 1 to 12}

Answer 1

the 3rd

Answer 2

The third choice represents all integers 1 or larger. So it includes not only all integers 1 through 12, but also all integers greater that 12, such as 13, 14, 15, etc. for ever.