Added elementary properties of adjoint maps.

src/op/vn/topologies.tex

@@ -13,7 +13,7 @@ Depending on the topology placed on $H \otimes H$, and the corresponding complet
     Let $H$ be a complex Hilbert space, then the dual of $H \wh \otimes_\pi H$ is $B(H)$, and the $\sigma(B(H), H \wh \otimes_\pi H)$-topology is the \textbf{ultraweak}/\textbf{$\sigma$-weak} topology on $B(H)$. 
 \end{definition}
 \begin{proof}
-    By \autoref{proposition:projective-tensor-product-dual}. 
+    By \autoref{proposition:projective-tensor-product-dual} and the \hyperref[Riesz Representation Theorem]{theorem:riesz-hilbert}. 
 \end{proof}
 
 Seeing that $B(H)$ is a dual Banach space, the following fact is immediate: