Show that for binary vectors, wt(u + v) ≥ wt(u) - wt(v) and equalityoccurs if and only if for all i the ith component of u is 1 wheneverthe ith component of v is 1.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.2: Norms And Distance Functions
Problem 33EQ
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Show that for binary vectors, wt(u + v) ≥ wt(u) - wt(v) and equality
occurs if and only if for all i the ith component of u is 1 whenever
the ith component of v is 1.

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