Replaced mentions of normed spaces to normed vector spaces.

src/measure/measurable-maps/metric.tex

@@ -125,7 +125,7 @@
 
 \begin{proposition}
 \label{proposition:measurable-simple-separable-norm}
-    Let $(X, \cm)$ be a measurable space, $(E, \norm{\cdot}_E)$ be a separable normed space, and $f: X \to E$, then the following are equivalent:
+    Let $(X, \cm)$ be a measurable space, $(E, \norm{\cdot}_E)$ be a separable normed vector space, and $f: X \to E$, then the following are equivalent:
     \begin{enumerate}
         \item $f$ is $(\cm, \cb_E)$-measurable.
         \item There exists simple functions $\seq{f_n}$ such that $\abs{f_n} \le \abs{f}$ for all $n \in \natp$, and $f_n \to f$ pointwise.