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When two odd numbers are added, the sum is an
When two odd numbers are added, the sum is an even number.
For example, 3 + 5 = 8.
So, the set of odd numbers is not closed for addition.
When two odd numbers are multiplied, the product is an
When two odd numbers are multiplied, the product is an odd number.
So, the set of odd numbers is closed for multiplication.
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