The onto mapping property of Sierpinski
Abstract
Define (*) There exists such that for every uncountable which is a subset of there exists such that maps onto . This is roughly what Sierpinski in his book on the continuum hypothesis refers to as but I think he brings reals number line into it. I don't know French so I cannot say for sure what he says but I think he proves that (*) follows from the continuum hypothesis. We show that the existence of a Luzin set implies (*); and (*) implies that there exists a nonmeager set of reals of size . We also show that it is relatively consistent that (*) holds but there is no Luzin set. All the other properties in this paper, (**), (S*), (S**), (B*) are shown to be equivalent to (*).
Keywords
Cite
@article{arxiv.1408.2851,
title = {The onto mapping property of Sierpinski},
author = {Arnold W. Miller},
journal= {arXiv preprint arXiv:1408.2851},
year = {2014}
}
Comments
Latest version: http://www.math.wisc.edu/~miller/res/sier.pdf