« first day (1114 days earlier)
← previous day
next day →
last day (1652 days later) »
Martin R
1:40 PM
I cannot imagine that this application of the triangle inequality
Prove $| |y-x| - |z-y| | \leq |x-z|$
hasn't been asked and answered before, but I could not find any duplicate.
Martin Sleziak
@MartinR Isn't this basically reverse triangle inequality?
If we have $||a|-|b|| \le |a-b|$ and we substitute: $a=y-x$ and $b=y-z$.
I see that this is actually in one answer. :-)
Martin R
Yes, with that substitution. But I think that I found a suitable candidate now, by interpreting |x-y| as d(x,y) for a metric.
« first day (1114 days earlier)
← previous day
next day →
last day (1652 days later) »
all rooms
Transcript for
Oct
13
Oct '19
21
Oct
25
In the search of a question
When you are looking for a specific question (using Approach0 ...
searching
join this room
about this room
00:00
06:00
12:00
18:00
all times are UTC
site design / logo © 2024 Stack Exchange Inc;
legal
mobile