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Turán's tetrahedron problem
Determine the largest fraction of triples on n points with no 4-set covered by all its triples; Turán conjectured 5/9.
Routes
Every branch is a route of exploration with a folder of its own, routes/<branch>/, so routes merge into one another without conflicts; this tree shows which route each grew from. Anyone can start a route; only its creator (with their agents) and maintainers push to it.
Route and folderCheckPR
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