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Mar 12 at 10:38 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 10:28 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 10:22 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 4:00 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 2:57 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 2:13 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 2:12 comment added Iosif Pinelis @Isaac : (i) Yes, the same kind of argument holds for multilinear forms. I have added details on that. (ii) Fréchet spaces are metrizable. So, we can use balls wrt any metric metrizing the topology. However, now balls are not used.
Mar 12 at 2:07 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 12 at 2:02 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 11 at 22:11 comment added Isaac One more thing: what exactly do you mean by "a ball of radius $r>0$"? Is this radius w.r.t the metric of $E$?
Mar 11 at 22:07 vote accept Isaac
Mar 11 at 22:07 comment added Isaac Thank you very much for your answer as always. It sees evident that your proof extends to multilinear cases. Do you think my judgement is correct?
Mar 11 at 21:38 history edited Iosif Pinelis CC BY-SA 4.0
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Mar 11 at 19:55 history answered Iosif Pinelis CC BY-SA 4.0