Remark 5.15.13.2EDAD1EF1694Recall that in general, an $\mathcal{F}$-open set is not a countable union of sets of the form (5.15.12). In fact, an $\mathcal{F}$-open set is not a Borel set in general. See [EK23] for a concrete example.
PomePome2EDAD1EF1694Remark 5.15.13.2EDAD1EF1694Recall that in general, an $\mathcal{F}$-open set is not a countable union of sets of the form (5.15.12). In fact, an $\mathcal{F}$-open set is not a Borel set in general. See [EK23] for a concrete example.
Comments
Corrections, questions, and mathematical discussion are welcome. Sign in with GitHub to comment. Comments are public.