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S Dec 22, 2021 at 10:37 history suggested glS CC BY-SA 4.0
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S Dec 22, 2021 at 10:37
Sep 11, 2010 at 19:01 vote accept Zack
Aug 10, 2010 at 16:09 comment added André Henriques The long line is weakly contractible (all its homotopy groups are zero) but not contractible (there is no [0,1]-parametrized homotopy between the identity map and the zero map).
Aug 10, 2010 at 15:14 answer added Andreas Blass timeline score: 14
Aug 10, 2010 at 13:42 answer added BS. timeline score: 11
Aug 10, 2010 at 11:58 comment added BS. @ Henri : the long line isn't contractible. See en.wikipedia.org/wiki/Long_line_(topology) for a list of properties and some references.
Aug 10, 2010 at 9:21 comment added Henri Maybe there's something I don't get, but can't we assert that the line being contractible, any vector bundle on it must be trivial?
Aug 10, 2010 at 7:26 history asked Zack CC BY-SA 2.5