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searching for Urysohn's lemma 1 found (31 total)

Paracompact space (3,484 words) [view diff] exact match in snippet view article find links to article

U ⊆ U {\displaystyle \operatorname {supp} ~f_{U}\subseteq U\,} (by Urysohn's lemma for disjoint closed sets in normal spaces, which a paracompact Hausdorff