To explain:
The set of natural numbers is a field under addition and multiplication or not.
Answer to Problem 34WE
The set of natural numbers is not a field under addition and multiplication because of the absence of Identity property of addition and property of opposites and property of reciprocals in multiplication.
Explanation of Solution
Definition of natural numbers:
Natural numbers are the numbers we use to count. They’re whole, non-negative numbers.
From the definition:
The set of natural numbers is not a field under addition, because the natural numbers does not obey the Identity property of addition and property of opposites.
The set of natural numbers is not a field under multiplication, because the natural numbers does not obey the property of reciprocals.
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