Every Lusin set is undetermined in the point-open game
نویسندگان
چکیده
منابع مشابه
Undetermined sets of point-open games
We show that a set of reals is undetermined in Galvin’s point-open game iff it is uncountable and has property C′′, which answers a question of Gruenhage. Let X be a topological space. The point-open game G(X) of Galvin [G] is played as follows. Black chooses a point x0 ∈ X, then White chooses an open set U0 3 x0, then B chooses a point x1 ∈ X, then W chooses an open set U1 3 x1, etc. B wins th...
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ژورنال
عنوان ژورنال: Fundamenta Mathematicae
سال: 1994
ISSN: 0016-2736,1730-6329
DOI: 10.4064/fm-144-1-43-54