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For a Tychonoff space
and a family λ of subsets of
, we denote by
) the space of all real-valued continuous functions on
with the set-open topology.
A Menger space is a topological space in which for every sequence of open covers U
, U
, ... of the space there are finite sets F
⊂ U
, F
⊂ U
, ... such that family F
∪ F
∪ ... covers the space.
In this paper, we study the Menger and projective Menger properties of a Hausdorff space
). Our main results state that