On covering of real line by null sets
Let \(\kappa_ m\) be the least cardinal \(\kappa\) such that the real line can be covered by \(\kappa\) many sets of Lebesgue measure zero. Assuming that \(2^{\omega}\) is regular and that there is a \(2^{\omega}\)-scale, the author (1) gives a combinatorial characterization of \(\kappa_ m\) and (2) shows that \(\kappa_ m\) has uncountable cofinality.
scientific article; zbMATH DE number 4047707
scientific article