On certain indestructibility of strong cardinals and a question of Hajnal

Moti Gitik*, Saharon Shelah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

A model in which strongness of κ is indestructible under κ+ -weakly closed forcing notions satisfying the Prikry condition is constructed. This is applied to solve a question of Hajnal on the number of elements of {λδ|2δ<λ}.

Original languageEnglish
Pages (from-to)35-42
Number of pages8
JournalArchive for Mathematical Logic
Volume28
Issue number1
DOIs
StatePublished - Feb 1989

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