How would I prove that an isometry is one to one?(adsbygoogle = window.adsbygoogle || []).push({});

General definition of isometry, A:

<Ax,Ay> = <x,y>

Where < , > is an inner product (scalar product, dot product, etc.)

How do I prove A has to be one to one for this to work?

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# Homework Help: How would I prove that an isometry is one to one?

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