If M and N are metric spaces, the Cartesian product M x N is again a netric space with the distance function d((m1, n1), (m2, n2)) = max(dM (m1, m2), dN(n1, n2)).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.1: Rectangular Coordinate Systems
Problem 21E
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If M and N are metric spaces, the Cartesian product M × N is again a
metric
space
with the distance function
d((m1, n1), (m2, n2)) = max(dM(mı, m2), dN(n1, n2)).
Transcribed Image Text:If M and N are metric spaces, the Cartesian product M × N is again a metric space with the distance function d((m1, n1), (m2, n2)) = max(dM(mı, m2), dN(n1, n2)).
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