research

On densities of box products

Abstract

AbstractWe construct two universes V1, V2 satisfying the following GCH below ℵω, 2ℵω = ℵω + 2 and the topological density of the space ℵω2 with ℵ0 box product topology d<ℵ1 (ℵω) is ℵω + 1 in V1 and ℵω + 2 in V2. Further related results are discussed as well

    Similar works