partial updates, continue on Riemannian manifold

content/Math4201/Math4201_L8.md

@@ -15,7 +15,7 @@ Let $X=\mathbb{R}$ with standard topology.
 
 Let $A=(0,1)$, then set of limit points of $A$ is $[0,1]$.
 
-Let $A=\left{\frac{1}{n}\right}_{n\in \mathbb{N}}$, then set of limit points of $A$ is $\{0\}$.
+Let $A=\left\{\frac{1}{n}\right\}_{n\in \mathbb{N}}$, then set of limit points of $A$ is $\{0\}$.
 
 Let $A=\{0\}\cup (1,2)$, then set of limit points of $A$ is $[1,2]$