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AML
2005
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13 years 11 months ago
Middle diamond
Under certain cardinal arithmetic assumptions, we prove that for every large enough regular cardinal, for many regular < , many stationary subsets of concentrating on cofinali...
Saharon Shelah
APAL
2006
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13 years 11 months ago
On properties of theories which preclude the existence of universal models
We introduce the oak property of first order theories, which is a syntactical condition that we show to be sufficient for a theory not to have universal models in cardinality whe...
Mirna Dzamonja, Saharon Shelah