(Q2141963)

English

retract

continuous mapping from a topological space into a subspace that preserves the position of all points in that subspace

retraction

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defining formula

r\colon X\to A

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imported from Wikimedia project

English Wikipedia

reference URL

https://www.cs.vu.nl/~dijkstra/teaching/topologieI/top03d1.pdf

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WikiProject Mathematics

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retraction

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imported from Wikimedia project

Polish Wikipedia

Wikimedia import URL

https://pl.wikipedia.org/w/index.php?title=Retrakcja_(topologia)&oldid=62215453

Identifiers

Encyclopedia of Mathematics article ID

Retract_of_a_topological_space

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Freebase ID

/m/06njj5

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Google Knowledge Graph ID

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Metamath statement ID

df-retr

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Microsoft Academic ID

188894458

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nLab ID

retract

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(Q2141963)

retract

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