ordered set
preferred label: مجموعه مرتب @fa
type: Concept
narrower: index set

inverse system
preferred label: دستگاه وارون @fa
type: Concept
related: index set

ordinal number
preferred label: عدد ترتیبی @fa
type: Concept
related: index set

index set
related: ordinal number
related: ordinal
related: inverse system
related: direct system
broader: ordered set
preferred label: مجموعه اندیس @fa
type: Concept

ordinal
preferred label: ترتیبی @fa
type: Concept
related: index set

direct system
preferred label: دستگاه مستقیم @fa
type: Concept
related: index set