KnowraSzemerédi–Trotter theoremLinked fromLinked fromThe 5 pages that link to Szemerédi–Trotter theorem, each with the reason it gives.All 5Broader topic 3Related 2Incidence geometryBroader topic: It is a landmark quantitative result for planar point-line incidences.IncidenceBroader topic: It gives a sharp general bound for point-line incidences.Endre SzemerédiBroader topic: Szemerédi and William Trotter proved this influential result in discrete geometry.Sylvester–Gallai theoremRelated: Both results turn geometric incidence structure into constraints on finite configurations.Big-line-big-clique conjectureRelated: Its incidence estimates offer tools for controlling line-rich point configurations.