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Keywords: Hadwiger covering.svg the Hadwiger conjecture in combinatorial geometry A triangle may be covered by three smaller homothetic triangles but a square requires four smaller squares to cover all of its corners The Hadwiger conjecture states that any n-dimensional convex body can be covered by at most 2<sup>n</sup> smaller convex copies of itself own David Eppstein 2009-03-06 Files by User David Eppstein from en wikipedia Discrete geometry |