Polished A-A and added new lines for broken enumerates.

src/measure/vector/vector.tex

@@ -7,7 +7,8 @@
         \begin{enumerate}
         \item[(M1)] $\mu(\emptyset) = 0$.
         \item[(M2)] For any $\seq{A_n} \subset \cm$ pairwise disjoint, $\mu\paren{\bigsqcup_{n \in \natp}A_n} = \sum_{n \in \natp} \mu(A_n)$ where the sum converges absolutely. 
-    \end{enumerate}
+    \end\{enumerate\}
+
     
 \end{definition}