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A dagger, obelisk, or obelus † is a typographical mark that usually indicates a footnote if an asterisk has already been used. [1] The symbol is also used to indicate death (of people) or extinction (of species or languages). [ 2 ]
A closed subspace of a Baire space need not be Baire. See the Examples section. If a space contains a dense subspace that is Baire, it is also a Baire space. [17] A space that is locally Baire, in the sense that each point has a neighborhood that is a Baire space, is a Baire space. [18] [19] Every topological sum of Baire spaces is Baire. [20]