Erdős problem 212Is there a dense subset of ℝ^2 such that all pairwise distances are rational?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 2122 retained source recordsCanvaspublic previewSource#212→ResultNone→Checks0