Doklady Mathematics.
Vol. 94.
2016.
P. 681-683
Some properties of Hausdorff distance are studied. It is shown that, in every infinite-dimensional normed space, there exists a pair of closed and bounded sets such that the distance between every two points of these sets is greater than the Hausdorff distance between these sets. A relation of the obtained result to set-valued analysis is discussed. © 2015, Springer Science+Business Media New York.