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math.LO2022
A new small Dowker space
Assaf Rinot, Roy Shalev, Stevo Todorcevic
It is proved that if there exists a Luzin set, or if either the stick principle or diamond(b) hold, then a strong instance of the guessing principle holds at the f…
math.LO2022
Cofinal types below
Roy Shalev
It is proved that for every positive integer , the number of non-Tukey-equivalent directed sets of cardinality is at least , the -Catalan number.…