which is NOT finite?

Question

Which of the following sets is not finite?

 

{x|x is a natural number less than 10}

{x|x is a whole number between 0 and 10}

{x|x is an integer that is less than 0}

Answer 1

Natural numbers set is {1,2,3,4......∞}

Whole numbers set is {0,1,2,3,4,...∞}

Integers set is {-∞....-1,0,1,....∞}

Given x/x is a natural number less than 10

That means the numbers are 1,...9 is finite set.

And x/x is a whole number between 0 and 10

that means the numbers are between 0and 10 is finite set.

And lastly x/x s an nteger that is less then 0.

In ths case integers are infinite.

This set is not finite set.