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math.LO2021
-definability at higher cardinals: Thin sets, almost disjoint families and long well-orders
Philipp Lücke, Sandra Müller
Given an uncountable cardinal , we consider the question of whether subsets of the power set of that are usually constructed with the help of the Axiom of Choice are definab…
math.LO2021
Uniformization and Internal Absoluteness
Sandra Müller, Philipp Schlicht
Measurability with respect to ideals is tightly connected with absoluteness principles for certain forcing notions. We study a uniformization principle that postulates the existenc…