Reidemeister move
preferred label: حرکت ریدمیستر @fa
type: Concept
related: crossing chang

crossing chang
related: unknotting number
related: Reidemeister move
broader: crossing
preferred label: تغییر تلاقی @fa
type: Concept

crossing
preferred label: تلاقی @fa
type: Concept
narrower: crossing chang

unknotting number
preferred label: عدد ناگره‌ای @fa
type: Concept
related: crossing chang