The Stacks project

Example 6.17.4. See Example 6.11.3 for notation. The map $A_ p \to \underline{A}$ induces a map $A_ p^\# \to \underline{A}$. It is easy to see that this is an isomorphism. In words: The sheafification of the constant presheaf with value $A$ is the constant sheaf with value $A$.

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View Example 6.17.4 as pdf