I got two questions regarding the proof:
Why we can just assume $A_\mathfrak{m}$ as $A$ if we pick a sufficiently small neighborhood of $x$? (the 7-th line)
Why's the last isomorphism true?
Thank you very much in advance for answering my question.
2026-03-26 04:14:33.1774498473
Regarding the Proof of Hartshorne III.7.11
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