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Feb 3, 2021 at 21:41 review Close votes
Feb 6, 2021 at 10:02
Feb 3, 2021 at 21:18 comment added R. van Dobben de Bruyn Hint: use compactness of the base $B$ to show that $E$ is trivialised over some nonempty closed subset $Z \subseteq B$.
Feb 3, 2021 at 19:40 history asked C.F.G CC BY-SA 4.0