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Miklos Schweitzer 1967_2

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October 6, 2008
superior algebrasuperior algebra unsolved

Problem Statement

Let K K be a subset of a group G G that is not a union of lift cosets of a proper subgroup. Prove that if G G is a torsion group or if K K is a finite set, then the subset ⋂k∈Kk−1K \bigcap _{k \in K} k^{-1}K consists of the identity alone. L. Redei
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