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-rw-r--r--library/topology/basis.tex4
1 files changed, 2 insertions, 2 deletions
diff --git a/library/topology/basis.tex b/library/topology/basis.tex
index ecdd0f7..e33909f 100644
--- a/library/topology/basis.tex
+++ b/library/topology/basis.tex
@@ -45,6 +45,6 @@
\end{definition}
\begin{definition}\label{genOpens}
- $\genOpens{B}{X} = \{ U\in\pow{X} \mid \text{for all $x\in U$ there exists $V\in B$
- such that $x\in V\subseteq U$}\}$.
+ $\genOpens{B}{X} = \left\{ U\in\pow{X} \middle| \textbox{for all $x\in U$ there exists $V\in B$
+ \\ such that $x\in V\subseteq U$}\right\}$.
\end{definition}