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• More metric complexes
  *small balls connected by rods, or ...ma$ of $K$ as subsets of $|K|$ form a $\sigma$-algebra, i.e., a collection closed under the operations of complement, countable union, and countable intersec
  21 KB (3,445 words) - 13:53, 19 February 2016
• Functions of several variables
  But what is the multi-dimensional analog of a closed bounded interval? and a set in ${\bf R}^n$ is called ''closed'' if it contains the limits of all of its convergent sequences.
  97 KB (17,654 words) - 13:59, 24 November 2018
• Applied Topology and Geometry
  #[[Closed and exact forms]] #[[Open and closed sets]]
  16 KB (2,088 words) - 16:37, 29 November 2014
• Euclidean space
  ...oods and topologies|base of the topology]] is the collection of all "open" balls in $X={\bf R}^n$: '''Theorem.''' A closed bounded subset of a [[Euclidean space]] is [[compactness|compact]].
  1 KB (201 words) - 14:41, 12 August 2018
• Geometric complexes
  *small balls connected by rods, or ...ma$ of $K$ as subsets of $|K|$ form a $\sigma$-algebra, i.e., a collection closed under the operations of complement, countable union, and countable intersec
  20 KB (3,354 words) - 17:37, 30 November 2015
• Hodge duality of cubical forms
  ...e aren't included. This result it typical in the sense that the dual of a "closed" complex is an "open" complex. The solution is either to include in $K^*$ a *small balls connected by rods, or
  7 KB (1,114 words) - 18:10, 27 August 2015

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