- #1
metder
- 5
- 0
Homework Statement
Let (X, d) be a metric space and let A,B[tex]\subset[/tex]X be two disjoint
closed sets. Show that X is normal by using the function
f(x)=d(x,A)/[d(X,A)+d(x,B)]
The Attempt at a Solution
I'm somewhat stuck on this. I'm guessing the proof is pretty short, but any help would be appreciated.