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- Phragmen–Brouwer_theorem abstract "In topology, the Phragmén–Brouwer theorem, introduced by Lars Edvard Phragmén and Luitzen Egbertus Jan Brouwer, states that if X is a normal connected locally connected topological space, then the following two properties are equivalent:If A and B are disjoint closed subsets whose union separates X, then either A or B separates X.X is unicoherent, meaning that if X is the union of two closed connected subsets, then their intersection is connected or empty.The theorem remains true with the weaker condition that A and B be separated.".
- Phragmen–Brouwer_theorem wikiPageID "34790475".
- Phragmen–Brouwer_theorem wikiPageRevisionID "580106273".
- Phragmen–Brouwer_theorem subject Category:Theorems_in_topology.
- Phragmen–Brouwer_theorem subject Category:Trees_(topology).
- Phragmen–Brouwer_theorem comment "In topology, the Phragmén–Brouwer theorem, introduced by Lars Edvard Phragmén and Luitzen Egbertus Jan Brouwer, states that if X is a normal connected locally connected topological space, then the following two properties are equivalent:If A and B are disjoint closed subsets whose union separates X, then either A or B separates X.X is unicoherent, meaning that if X is the union of two closed connected subsets, then their intersection is connected or empty.The theorem remains true with the weaker condition that A and B be separated.".
- Phragmen–Brouwer_theorem label "Phragmen–Brouwer theorem".
- Phragmen–Brouwer_theorem sameAs Phragmen%E2%80%93Brouwer_theorem.
- Phragmen–Brouwer_theorem sameAs Q7188035.
- Phragmen–Brouwer_theorem sameAs Q7188035.
- Phragmen–Brouwer_theorem wasDerivedFrom Phragmen–Brouwer_theorem?oldid=580106273.