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Sep 8, 2017 at 19:55 vote accept Ali Taghavi
Sep 8, 2017 at 17:39 answer added Robert Bryant timeline score: 10
Sep 7, 2017 at 22:10 history edited YCor CC BY-SA 3.0
minor typing corrections
Sep 7, 2017 at 21:24 history edited Ali Taghavi CC BY-SA 3.0
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Sep 7, 2017 at 21:18 history edited Ali Taghavi CC BY-SA 3.0
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Sep 7, 2017 at 21:10 history edited Ali Taghavi CC BY-SA 3.0
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Sep 7, 2017 at 21:09 comment added Ali Taghavi @JaapEldering thanks again for your comment. So I revise my question.
Sep 7, 2017 at 21:07 comment added Ali Taghavi @JaapEldering Yes You are right. I am sorry if my question is elementary.
Sep 7, 2017 at 21:04 history edited Ali Taghavi CC BY-SA 3.0
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Sep 7, 2017 at 20:56 comment added Jaap Eldering I'm assuming you mean in point two "all trajectories of X" not "U \setminus {0}". Then what about X(x) = x and the Euclidean metric?
Sep 7, 2017 at 20:53 history edited Ali Taghavi CC BY-SA 3.0
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Sep 7, 2017 at 20:48 history asked Ali Taghavi CC BY-SA 3.0