Switch phi and psi

Thanks to Jordan https://stacks.math.columbia.edu/tag/01MZ#comment-8511
stacks · May 10, 2024 · 48c7a54 · 48c7a54
1 parent bcf8ad5
commit 48c7a54
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/constructions.tex b/constructions.tex
@@ -2141,7 +2141,7 @@ \section{Functoriality of Proj}
 Let $\varphi : A \to B$, $\psi : B \to C$ be graded ring maps.
 Then we have
 $$
-U(\psi \circ \varphi) = r_\varphi^{-1}(U(\psi))
+U(\psi \circ \varphi) = r_\psi^{-1}(U(\varphi))
 \quad
 \text{and}
 \quad