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- {{r|Closed set}}576 bytes (77 words) - 19:04, 11 January 2010
- ...mplement]] <math>S = R \setminus \mathfrak{p}</math> is a multiplicatively closed set and the localisation of ''R'' at <math>\mathfrak{p}</math> is the localisat2 KB (312 words) - 09:18, 21 October 2009
- ...is, if <math>\scriptstyle \overline{A}=X</math>); equivalently, the only [[closed set]] in ''X'' containing ''A'' is ''X'' itself.1 KB (232 words) - 15:27, 6 January 2009
- {{r|Closed set}}288 bytes (41 words) - 15:20, 6 January 2009
- ...be continuous if for any open set <math>U \in O_Y</math> (respectively, [[closed set|closed subset]] of ''Y'' ) the set <math>f^{-1}(U)=\{ x \in X \mid f(x) \in3 KB (614 words) - 14:20, 13 November 2008
- {{r|Closed set}}946 bytes (151 words) - 13:05, 28 December 2008
- {{r|Closed set}}959 bytes (152 words) - 15:06, 28 July 2009
- {{r|Closed set}}518 bytes (68 words) - 18:06, 11 January 2010
- ...pace|noetherian]]'' if it satisfies the [[descending chain condition]] for closed set: any descending chain of closed subsets <math>Y_0\supseteq Y_1\supseteq\ldo15 KB (2,586 words) - 16:07, 4 January 2013
- ...makes it possible to define the geometric operation of projection onto a [[closed set|closed]] subspace (in the metric topology induced by the inner product), ju3 KB (511 words) - 00:25, 20 February 2010
- ...n ''their'' definitions, etc. Meaning cannot emerge from definitions in a closed set of words. Without some ‘starter’ words whose meanings do not depend on11 KB (1,740 words) - 03:54, 1 November 2011
- ...s, and in fact one cannot define them in simpler words, without creating a closed set of words with a circularity of definitions that ultimately precludes provid ...a circular task, not surprisingly, because the dictionary comprises only a closed set of words, finite in number, that enable descriptions of the meanings of eac23 KB (3,578 words) - 14:08, 18 February 2024
- ...Borel spaces) are especially useful. Every Borel set (in particular, every closed set and every open set) in a Euclidean space (and more generally, in a complete28 KB (4,311 words) - 08:36, 14 October 2010