Prove that .

*Proof.*By Theorem I.3, we have , so

Thus, indeed is the additive inverse of ; hence, by definition

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Stumbling Robot

A Fraction of a Dot
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Prove -(a+b) = -a-b

* Proof. * By Theorem I.3, we have , so
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Prove that .

Thus, indeed is the additive inverse of ; hence, by definition

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