Is there condition on a Metric spaces which is equivalent to: The closure of all open balls are the closed balls?
111830
When is the closure of an open ball equal to the closed ball?
147247
Continuous function on closed unit ball
62479
A isometric map in metric space is surjective?
72468
Open and closed balls in $C[a,b]$
53429
In a complete metric space with no isolated points, any countable intersection of open dense sets is uncountable?
69528
Metrizability of quotient spaces of metric spaces
83159
Defining a metric space
146967
Understanding equivalent metric spaces
123039
If $0<\alpha < 1$ and $d(x,y)$ is metric, show that $((d(x,y))^{\alpha}$ is metric.
36566
Equivalence classes and metric spaces
112303
Distances between closed sets on metric spaces
33859
How to show that a disjoint sum of metric spaces is metrizable?
102924
Normal space- equivalent condition: $\forall U, V$ - open $: U \cup V = X \ \ \ \exists F \subset U \ , G \subset V$ - closed $: F \cup G = X$
143457
Is product of two closed sets closed?
50344
What is the closure of an open ball $B_X(\mathbf{a},r)$ in $X=\mathbb{R}^n$?
137881
A not complete metric space?
51227
Proving that given metric space is complete: $X := (0,\infty)$ and $d:=|\ln(x)-\ln(y)|$