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10. Applications between metric spaces II
10.1 Application extension
Tietze extension theorem (Lebesgue (1907), Brouwer (1912), Tietze (1915), Urysohn (1925)). A continuous function f defined on a closed subset X of a topological space
separated T
4
and having values in
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Applications between metric spaces II
Applications between metric spaces II
Property preservation and invariance
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