The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

The search session has expired. Please query the service again.

Displaying similar documents to “On game-theoretic methods in the theory of Souslin sets”

A dichotomy on Schreier sets

Robert Judd (1999)

Studia Mathematica

Similarity:

We show that the Schreier sets S α ( α < ω 1 ) have the following dichotomy property. For every hereditary collection ℱ of finite subsets of ℱ, either there exists infinite M = ( m i ) i = 1 such that S α ( M ) = m i : i E : E S α , or there exist infinite M = ( m i ) i = 1 , N such that [ N ] ( M ) = m i : i F : F a n d F N S α .