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BSL
2007
61views more  BSL 2007»
13 years 5 months ago
Incompleteness in a General Setting
John L. Bell
BSL
2007
63views more  BSL 2007»
13 years 5 months ago
Describing Groups
André Nies
BSL
2007
60views more  BSL 2007»
13 years 5 months ago
Inner Models and Ultrafilters in L(R)
We present a characterization of supercompactness measures for ω1 in L(R), and of countable products of such measures, using inner models. We give two applications of this charact...
Itay Neeman
BSL
2007
51views more  BSL 2007»
13 years 5 months ago
Relating First-order Set Theories and Elementary Toposes
We show how to interpret the language of first-order set theory in an elementary topos endowed with, as extra structure, a directed structural system of inclusions (dssi). As our ...
Steven Awodey, Carsten Butz, Alex Simpson, Thomas ...
BSL
2007
53views more  BSL 2007»
13 years 5 months ago
Fragment of Nonstandard Analysis with a Finitary Consistency Proof
We introduce a nonstandard arithmetic NQA− based on the theory developed by R. Chuaqui and P. Suppes in [2] (we will denote it by NQA+ ), with a weakened external open minimizati...
Michal Rössler, Emil Jerábek
BSL
2007
94views more  BSL 2007»
13 years 5 months ago
Descriptive Set Theory of Families of Small Sets
This is a survey paper on the descriptive set theory of hereditary families of closed sets in Polish spaces. Most of the paper is devoted to ideals and σ-ideals of closed or compa...
Étienne Matheron, Miroslav Zelený