Hilbert space
type: Concept
preferred label: فضای هیلبرت @fa
related: Erdos space

Erdos space
type: Concept
broader: topological space
preferred label: فضای اردوش @fa
related: Hilbert space

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