More topological cardinal inequalities
A new topological cardinal invariant is defined; it may be considered as a weaker form of the Lindelöf degree.
A new topological cardinal invariant is defined; it may be considered as a weaker form of the Lindelöf degree.
We prove that any topological group of a non-measurable cardinality is hereditarily paracompact and strongly σ-discrete as soon as it is submaximal. Consequently, such a group is zero-dimensional. Examples of uncountable maximal separable spaces are constructed in ZFC.
Page 1