##  [Cone](/cone) 

  ##  [Cone](https://puremath.quantumdictionary.io/cone-0) 

  

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- Mathematics & Logic -

**Pure Mathematics Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The cone CX on a topological space X is the quotient of X×[0,1] obtained by collapsing X×{0} to a single point, called the apex; the subspace X×{1} is the base and the cone contracts X to the apex along radial lines.