Matches in DBpedia 2015-10 for { ?s ?p "In mathematics, particularly topology, a Gδ space a space in which closed sets are ‘separated’ from their complements using only countably many open sets. A Gδ space may thus be regarded as a space satisfying a different kind of separation axiom. In fact normal Gδ spaces are referred to as perfectly normal spaces, and satisfy the strongest of separation axioms.Gδ spaces are also called perfect spaces."@en }
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- Gδ_space comment "In mathematics, particularly topology, a Gδ space a space in which closed sets are ‘separated’ from their complements using only countably many open sets. A Gδ space may thus be regarded as a space satisfying a different kind of separation axiom. In fact normal Gδ spaces are referred to as perfectly normal spaces, and satisfy the strongest of separation axioms.Gδ spaces are also called perfect spaces.".