Combinatorial images of sets of reals and semifilter trichotomy‏

B. Tsaban, L. Zdomskyy

Research output: Contribution to journalArticlepeer-review


Using a dictionary translating a variety of classical and modern covering properties into combinatorial properties of continuous images, we get a simple way to understand the interrelations between these properties in ZFC and in the realm of the trichotomy axiom for upward closed families of sets of natural numbers. While it is now known that the answer to the Hurewicz 1927 problem is positive, it is shown here that semifilter trichotomy implies a negative answer to a slightly stronger form of this problem.
Original languageAmerican English
Pages (from-to)1278-1288
JournalThe Journal of Symbolic Logic
Issue number4
StatePublished - 2008


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