A constructive “Closed subgroup theorem” for localic groups and groupoids
Peter T. Johnstone (1989)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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Displaying similar documents to “A simple proof that localic subgroups are closed”
A constructive “Closed subgroup theorem” for localic groups and groupoids
A categorical account of the localic closed subgroup theorem
Christopher Townsend (2007)
Commentationes Mathematicae Universitatis Carolinae
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Given an axiomatic account of the category of locales the closed subgroup theorem is proved. The theorem is seen as a consequence of a categorical account of the Hofmann-Mislove theorem. The categorical account has an order dual providing a new result for locale theory: every compact subgroup is necessarily fitted.
Completion and closure
David Holgate (2000)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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Closure operators, monomorphisms and epimorphisms in categories of groups
Gabriele Castellini (1986)
Cahiers de Topologie et Géométrie Différentielle Catégoriques
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A note on a paper of Bernard Charles («Étude sur les sous-groupes d'un groupe abélien»)
Ch. Megibben (1963)
Bulletin de la Société Mathématique de France
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