Timeline for $d(x,y) = \min\{|x_1−y_1|+|x_2−y_2|, 1−|x_1−y_1|+|x_2−(1−y_2)|\}$ defines a metric on $[0,1)\times[0,1]$? [closed]

11 events

when toggle format	what		by	license	comment
Oct 21 at 6:36	history	left closed in review	Michael Albanese Daniele Tampieri Alex M.		Original close reason(s) were not resolved
Oct 20 at 22:55	comment	added	Ilya Bogdanov		If you glue the segment $\{0\}\times [0,1]$ with the segment $\{1\}\times [0,1]$ reverting the direction (i.e., the point $(0,y)$ identifies with $(1,1-y)$), your formula is the $\ell_1$-metric on the obtained Moebius strip.
Oct 20 at 22:51	review	Reopen votes
Oct 21 at 6:36
Oct 20 at 20:41	vote	accept	Aleph-null
Oct 20 at 19:59	vote	accept	Aleph-null
Oct 20 at 20:08
Oct 20 at 4:56	history	closed	Moishe Kohan abx R.P. user44191 Dan Turetsky		Not suitable for this site
Oct 19 at 15:10	review	Close votes
Oct 20 at 4:56
Oct 19 at 15:06	answer	added	Fedor Petrov		timeline score: 2
Oct 19 at 14:35	history	edited	Daniele Tampieri	CC BY-SA 4.0	Minor formatting
S Oct 19 at 14:27	review	First questions
Oct 19 at 14:35
S Oct 19 at 14:27	history	asked	Aleph-null	CC BY-SA 4.0