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$\begingroup$

It seems obvious that a limit point of $S'$ should be a member of $S'$ but I have no idea how to even begin with a proof of this.

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    What is $C$ here? And is $s$ a typo for $S$?2012-11-29
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    @BrianM.Scott You were too quick for me I had to check a previous question to edit my original question because i'd for gotten how to do bits of the coding it should now be how I wanted it as I have re-editted your edit2012-11-29
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    I saw; that’s fine. But we still need to know about $C$. Is $C$ really $\Bbb C$, the complex numbers?2012-11-29
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    @BrianM.Scott They should both be S' and C is the complex numbers I just didn't know how to code that yet2012-11-29
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    It’s `\Bbb C` or `\mathbb C`.2012-11-29
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    Ok i'll do that now2012-11-29
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    @BrianM.Scott Perfect that should be how I want it to look now2012-11-29

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