Abstract
We will prove that there exists a model of ZFC+"c = ω2" in which every M ⊆ ℝ of cardinality less than continuum c is meager, and such that for every X ⊆ 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 ⊆ ℝ such that the equation f[M] = g[M] implies f = g for every continuous nowhere constant functions f, g : ℝ → ℝ.
| Original language | English |
|---|---|
| Pages (from-to) | 1467-1490 |
| Number of pages | 24 |
| Journal | Journal of Symbolic Logic |
| Volume | 64 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 1999 |
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