EntityQ3526982· pop 6· linked from 11 articlesErdős–Anning theoremSign in to saveinfinite set of points in R2 with mutual integer distances must be a straight lineConnectionslineEntityLeonhard EulerEntityInternational Standard Book NumberEntityalgorithmEntityangleEntityintegerEntityrational numberEntitydiameterEntitydigital object identifierEntityPaul ErdősEntityright triangleEntityhyperbolaEntityEuclidean spaceEntityunit circleEntityStanisław UlamEntityQ118398EntitysimilarityEntitynumber lineEntityvertexEntitytriangle inequality theoremEntityCategoriesArithmetic problems of plane geometryPaul ErdősTheorems in discrete geometryTheorems in discrete mathematics