Asked by Tim

Is this correct, or where did I go wrong in my answer.

Give a reason to support: The natural numbers {1,2,3,4,5,...}are not a group under addition.
My reason:
0 is not included in the group since it is not included by identity property it can not be conducted making this group of numbers not a group under addition.

Answers

Answered by bobpursley
http://en.wikipedia.org/wiki/Natural_number

set theorists disagree with you.
Answered by Brandon
Aren't natural numbers also known as counting numbers?
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