A weak version of {lozenge, open} which follows from 2א 0<2א 1

Keith J. Devlin*, Saharon Shelah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

114 Scopus citations

Abstract

We prove that if CH holds (or even if 2א 0 < 2א 1), then a weak version of {lozenge, open} holds. This weak version of {lozenge, open} is a {lozenge, open}-like principle, and is strong enough to yield some of the known consequences of {lozenge, open}.

Original languageEnglish
Pages (from-to)239-247
Number of pages9
JournalIsrael Journal of Mathematics
Volume29
Issue number2-3
DOIs
StatePublished - Jun 1978

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