Definition 10.45.5 (046X)—The Stacks project

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Table of contents
Part 1: Preliminaries
Chapter 10: Commutative Algebra
Section 10.45: Perfect fields
Definition 10.45.5 (cite)

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Definition 10.45.5. Let $k$ be a field. The field extension $k'/k$ of Lemma 10.45.4 is called the perfect closure of $k$ . Notation $k^{perf}/k$ .

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