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- De_Bruijn–Erdős_theorem_(incidence_geometry) abstract "In incidence geometry, the De Bruijn–Erdős theorem, originally published by Nicolaas Govert de Bruijn and Paul Erdős (1948), states a lower bound on the number of lines determined by n points in a projective plane. By duality, this is also a bound on the number of intersection points determined by a configuration of lines.Although the proof given by De Bruijn and Erdős is combinatorial, De Bruijn and Erdős noted in their paper that the analogous (Euclidean) result is a consequence of the Sylvester–Gallai theorem, by an induction on the number of points.".
- De_Bruijn–Erdős_theorem_(incidence_geometry) thumbnail Nearpencil.svg?width=300.
- De_Bruijn–Erdős_theorem_(incidence_geometry) wikiPageID "26825148".
- De_Bruijn–Erdős_theorem_(incidence_geometry) wikiPageRevisionID "594249888".
- De_Bruijn–Erdős_theorem_(incidence_geometry) subject Category:Euclidean_plane_geometry.
- De_Bruijn–Erdős_theorem_(incidence_geometry) subject Category:Incidence_geometry.
- De_Bruijn–Erdős_theorem_(incidence_geometry) subject Category:Theorems_in_discrete_geometry.
- De_Bruijn–Erdős_theorem_(incidence_geometry) subject Category:Theorems_in_projective_geometry.
- De_Bruijn–Erdős_theorem_(incidence_geometry) comment "In incidence geometry, the De Bruijn–Erdős theorem, originally published by Nicolaas Govert de Bruijn and Paul Erdős (1948), states a lower bound on the number of lines determined by n points in a projective plane.".
- De_Bruijn–Erdős_theorem_(incidence_geometry) label "De Bruijn–Erdős theorem (incidence geometry)".
- De_Bruijn–Erdős_theorem_(incidence_geometry) label "Théorème de De Bruijn-Erdős (géométrie d'incidence)".
- De_Bruijn–Erdős_theorem_(incidence_geometry) sameAs De_Bruijn%E2%80%93Erd%C5%91s_theorem_(incidence_geometry).
- De_Bruijn–Erdős_theorem_(incidence_geometry) sameAs Théorème_de_De_Bruijn-Erdős_(géométrie_d'incidence).
- De_Bruijn–Erdős_theorem_(incidence_geometry) sameAs Q3527056.
- De_Bruijn–Erdős_theorem_(incidence_geometry) sameAs Q3527056.
- De_Bruijn–Erdős_theorem_(incidence_geometry) wasDerivedFrom De_Bruijn–Erdős_theorem_(incidence_geometry)?oldid=594249888.
- De_Bruijn–Erdős_theorem_(incidence_geometry) depiction Nearpencil.svg.
