Say I have a norm. We know that for the elements u,v of this norm we have $\|u\| = -t\|v\|$
Does this imply $u = \pm tv?$ Or does it imply $u = - tv?$
And why does it imply this equality?
Thank you
2026-04-08 16:18:28.1775665108
Question with equalities of norms with a multiple
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