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Jan 5, 2020 at 0:09 comment added Jonas One question remains: Is the statement true without the suposition that $G$ is finitely generated?
Jan 5, 2020 at 0:08 comment added Jonas I got it for finitely generated groups. Fortunately i just need of this case. Thank you very much!
Jan 4, 2020 at 23:05 review Close votes
Feb 17, 2020 at 3:01
Jan 4, 2020 at 19:48 comment added user6976 if you know the proof of the fact that a finite index subgroup of a f.g. group contains a characteristic subgroup of finite index, then the statement is trivial. If you do not know the proof, you should urgently learn it.
Jan 4, 2020 at 17:34 history asked Jonas CC BY-SA 4.0