THE NUMBER OF A SET

Beginning with one, we see that one and one more is two, two and one more is three and one more is four, etc. These arranged numbers are the ones we use in counting. They are called *counting numbers, *or *natural numbers. *4,5,6,7,etc. When we refer to all the counting numbers and *zero***, **~~we call this set of numbers the ~~**whole numbers, **or **integers.**

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