Combinatorial and model-theoretical principles related to regularity of ultrafilters and compactness of topological spaces. I

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/157394We begin the study of the consequences of the existence of certain infinite matrices. Our present application is to compactness of products of topological spaces.5 pagesLogicGeneral Topology03E05, 54B10, 54D20 (Primary); 03E75 (Secondary)Combinatorial and model-theoretical principles related to regularity of ultrafilters and compactness of topological spaces. Itext