contractible space
type: Concept
broader: topological space
preferred label: فضای انقباض‌پذیر @fa
related: homotopy group
related: homotopy theory

topological space
type: Concept
narrower: contractible space
preferred label: فضای توپولوژیک @fa

homotopy group
type: Concept
preferred label: گروه هموتوپی @fa
related: contractible space

homotopy theory
type: Concept
preferred label: نظریه هموتوپی @fa
related: contractible space