3.2 Prove that in any metric space (S, d) every closed ball S,xo is a closed set.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.1: Rectangular Coordinate Systems
Problem 15E
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3.2 Prove that in any metric space (S, d) every closed ball S,xo] is a closed set.
(5)
3.3Let r and r2 be distinct points in the metric space (S, d). Verify that there are
open balls S, (T1) and Sr,(x2) which are disjoint.
X1
and x2
(4)
Transcribed Image Text:3.2 Prove that in any metric space (S, d) every closed ball S,xo] is a closed set. (5) 3.3Let r and r2 be distinct points in the metric space (S, d). Verify that there are open balls S, (T1) and Sr,(x2) which are disjoint. X1 and x2 (4)
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