From d10b405c622b8a9c97b8029eda53d6ce566dfbb2 Mon Sep 17 00:00:00 2001 From: Aise Johan de Jong Date: Mon, 26 Jun 2023 13:40:18 -0400 Subject: [PATCH] Fix a typo in algebra Thanks to Elias Guisado https://stacks.math.columbia.edu/tag/034M#comment-8513 --- algebra.tex | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/algebra.tex b/algebra.tex index 6cb53e090..bf0deb786 100644 --- a/algebra.tex +++ b/algebra.tex @@ -8119,7 +8119,7 @@ \section{Normal rings} \begin{proof} Let $R$ be a normal ring. Let $x \in Q(R)$ be an element of the total ring of fractions of $R$ integral over $R$. Set $I = \{f \in R, fx \in R\}$. Let -$\mathfrak p \subset R$ be a prime. As $R \subset R_{\mathfrak p}$ is +$\mathfrak p \subset R$ be a prime. As $R \to R_{\mathfrak p}$ is flat we see that $R_{\mathfrak p} \subset Q(R) \otimes_R R_{\mathfrak p}$. As $R_{\mathfrak p}$ is a normal domain we see that $x \otimes 1$ is an element of $R_{\mathfrak p}$. Hence we can find $a, f \in R$, $f \not \in \mathfrak p$