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Feb 21, 2018 at 22:10 comment added Will Sawin @Xiboto a typo.
Feb 21, 2018 at 22:09 history edited Will Sawin CC BY-SA 3.0
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Feb 21, 2018 at 20:22 comment added Xiboto Why do you write $Aut(X) \to Aut(\mathbb{Z})$?
Feb 21, 2018 at 19:50 history answered Will Sawin CC BY-SA 3.0