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Q-Sets, \Delta-Sets, and L-Spaces
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classification
math.GN
keywords
spacedeltalindelofq-setaronszajnassumingconsidereddelta-sets
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abstract
The question whether there is a Lindelof Q-set space or Lindelof $\Delta$-set space is considered. We show that J. Moore's ZFC $L$-space is not a Q-set space in ZFC and, assuming all Aronszajn trees are special, it is not a $\Delta$-set space.
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