# Natural Numbers

posted by .

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.

## Similar Questions

1. ### algebra

Are the following true or false? 1. The difference of two natural numbers is always a natural number. 2. The sum of two natural numbers is always a natural number. 3. The quotient of two natural numbers is always a natural number.

Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers

What is the BEST reason to omit the reason for the refusal in a negative message?
4. ### Math: Homework Questons (answer quick)

Can you check if the answer is correct and of there any grammar mistakes. Write True or False and EXPLAIN your reasoning for the answer!!!! 8. (5 - 2) - 1 = 5 - (2 - 1) Answer: True Reason: The reason why my answer to this question …
5. ### math

The sum of the first 5 natural numbers is 15 or (5)(6)/2. The sum of the first 21 natural numbers is 231=(21)(22)/2, and the sum of the first 30 numbers is 465. Use inductive reasoning to derive the formula for the sum of the first …
6. ### Math

Which expression is equivalent to (-2)(a+6)?
7. ### Algebra

To which subset of rel numbers does the number -22 belong?
8. ### Math Help!!!

define each term and give at least 2 examples of each whole numbers natural numbers integers rational numbers irrational numbers
9. ### Algebra

True or false? Negative numbers are closed under addition. Give a counterexample True or false?
10. ### Algebra

To which subsets of real numbers does the number -22 belong?

More Similar Questions