Contractible space

Rarity: Common

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At a glance

Class

Notion

Domain

Science and technology

In collections

1 player has it in their collection.

What Wikipedia says

In mathematics, a topological space X is contractible if the identity map on X is null-homotopic, i.e. if it is homotopic to some constant map. Intuitively, a contractible space is one that can be continuously shrunk to a point within that space.

Excerpt from the Wikipedia article “Contractible space”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: ProboscideaRubber15, CC BY-SA 4.0, via Wikimedia Commons.