arXiv Analytics

Sign in

arXiv:math/9801154 [math.LO]AbstractReferencesReviewsResources

A model with no magic sets

Krzysztof Ciesielski, Saharon Shelah

Published 1998-01-15Version 1

We will prove that there exists a model of ZFC+``c= omega_2'' in which every M subseteq R of cardinality less than continuum c is meager, and such that for every X subseteq R of cardinality c there exists a continuous function f:R-> R with f[X]=[0,1]. In particular in this model there is no magic set, i.e., a set M subseteq R such that the equation f[M]=g[M] implies f=g for every continuous nowhere constant functions f,g:R-> R .

Related articles: Most relevant | Search more
arXiv:1406.5980 [math.LO] (Published 2014-06-23, updated 2014-08-28)
Tameness and frames revisited
arXiv:math/9204219 [math.LO] (Published 1992-04-15)
Uniformization and the diversity of Whitehead groups
arXiv:1508.06620 [math.LO] (Published 2015-08-26)
Complete $\mathcal{L}_{ω_1,ω}$-Sentences with Maximal Models in Multiple Cardinalities