Colouring and non-productivity of aleph_2-cc

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dc.creatorShelah, Saharon
dc.date1996-09-15
dc.date.accessioned2026-07-07T09:15:37Z
dc.date.available2026-07-07T09:15:37Z
dc.descriptionWe prove that colouring of pairs from aleph_2 with strong properties exists. The easiest to state (and quite a well known problem) it solves: there are two topological spaces with cellularity aleph_1 whose product has cellularity aleph_2 ; equivalently we can speak on cellularity of Boolean algebras or on Boolean algebras satisfying the aleph_2-c.c. whose product fails the aleph_2-c.c. We also deal more with guessing of clubs.
dc.identifierhttps://arxiv.org/abs/math/9609218
dc.identifierhttp://arxiv.org/abs/math/9609218
dc.identifierAnn. Pure Appl. Logic 84 (1997), 153-174
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/153077
dc.subjectLogic
dc.subjectGeneral Topology
dc.titleColouring and non-productivity of aleph_2-cc
dc.typetext

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