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Answered 2009-09-07 07:36:40

Not necessarily. The difference between a = 7 & b = 7 is 0, and that is not a natural number.

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Yes, the difference between two integers is always a whole number.


The difference of two natural numbers is always a natural number?

No. The difference can be a negative integer which is not a natural number.


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All negative integers are whole numbers but not natural numbers. Mathematicians are not agreed about whether 0 is a natural number or not.


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Is the difference of two natural numbers a natural number?

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