Contributions to Algebra and Geometry

38(1), 87 - 90 (1997)

Institut für Mathematik, Universität Greifswald D-17487 Greifswald, GermanyInstitute of Mathematics, Warsaw University of Technology Pl. Politechniki, 00-661 Warsaw, Poland

**Abstract:** We study the concept of a set fixing a convex body from within that was recently proposed by V{.} Soltan. We prove his conjecture that a finite set which fixes a $d$-dimensional convex body from within contains a subset of at most $2d$ points with the same property.

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