Does negative zero exist?

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In the set of real numbers, there is no negative zero. However, can you please verify if and why this is so? Is zero inherently "neutral"?

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There is a negative $0$, it just happens to be equal to the normal zero. For each real number $a$, we have a number $-a$ such that $a + (-a)=0$. So for $0$, we have $0+(-0)=0$. However, $0$ also has the property that $0+b=b$ for any $b$. So $-0=0$ be canceling the $0$ on the left hand side.