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Some remarks on reflection cardinals

Speaker(s)
Menachem Magidor
Affiliation
Uniwersytet Hebrajski w Jerozolimie
Date
Oct. 9, 2013, 5 p.m.
Room
room 5050
Seminar
Topology and Set Theory Seminar

A cardinal \kappa is said to be a reflection cardinal for a property of a mathematical structure if every structure (in the appropriate signature) has substructure of cardinality less than \kappa having the given property. In the talk we shall survey some results characterizing the possible reflection cardinals for different properties. There will be some very interesting open problems.