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I posted a question some hours ago:

How can we prove that $D(f)\backsimeq\operatorname{Spec} A_f$?

I realized I made a stupid mistake, instead of asking the injectivity of the map, I asked how to prove that this one is surjectivity.

So I'm in a dilemma, I don't know if I repost the question without the error or I edit it. The problem is the question has already answers, if I change it I think the post wouldn't make any sense.

Thanks.

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  • $\begingroup$ One of the thing to consider is whether your question was already answered, such situation was discussed for example here. You will find several related discussion in the questions linked to that one. $\endgroup$ Commented Sep 13, 2013 at 10:28
  • $\begingroup$ I did, as adviced here... $\endgroup$
    – draks ...
    Commented Sep 13, 2013 at 13:34

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