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Wei Zhong
Wei Zhong
5:00 AM
I find many results here using Approach0.
Just for a notice here. Approach0 was down for a while due to required maintenance by VPS provider. I have restarted it just now.
 
 
2 hours later…
Martin R
Martin R
6:53 AM
@WeiZhong I was searching for the exact inequality $| |y-x| - |z-y| | \leq |x-z|$ as posted in the question. But thanks to you and @MartinSleziak for looking into it.
 
 
10 hours later…
Wei Zhong
Wei Zhong
5:07 PM
You are welcome :)
 

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