Erdős problem 101Given nn points in R2\mathbb{R}^2, no five of which are on a line, the number of lines containing four points is o(n2)o(n^2).WorkspaceContinue locallyOpen sourceSign in to contributeOpen this exact Problem, source revision, and authority Repository in Workbench. This handoff does not clone, switch, upload, or execute anything.FilesErdős problem 1012 retained source recordsCanvaspublic previewSource#101→ResultNone→Checks0