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Timeline for Subcovers without a choice set

Current License: CC BY-SA 3.0

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Nov 10, 2017 at 15:02 comment added Ramiro de la Vega I meant to say "largest index" instead of "least index".
Nov 10, 2017 at 14:55 comment added Ramiro de la Vega @BjørnKjos-Hanssen: No, it is not the same construction. To see that $|S\cap D|=1$ for $S \in \mathcal S_0$, note that if $d_\xi \in S$ then for each $\alpha>\xi$, $d_\alpha$ was chosen in $X \setminus S$. So $\xi$ is the least index (and hence the only index) for which $d_\xi \in S$.
Nov 10, 2017 at 12:40 comment added Dominic van der Zypen Thank you Ramiro for putting this so clearly & concisely!
Nov 10, 2017 at 12:39 vote accept Dominic van der Zypen
Nov 10, 2017 at 10:48 history answered Ramiro de la Vega CC BY-SA 3.0