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Timeline for Version of Banach-Steinhaus theorem

Current License: CC BY-SA 4.0

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Jul 10, 2018 at 14:06 comment added Pietro Majer (the last equality is not true of course)
Jul 10, 2018 at 7:22 comment added Pietro Majer A small detail: we need a balanced convex set to get a norm, so we should replace $A$ with $A':= \text{co}(A\cup (-A))=[-1,1]\cdot A$, and check that the hypotheses are still satisfied by $A'$
Jul 10, 2018 at 5:00 history answered Jochen Wengenroth CC BY-SA 4.0