• Corpus ID: 237353323

On limits of betweenness relations

  title={On limits of betweenness relations},
  author={David Bradley-Williams and John Kenneth Truss},
. We give a flexible method for constructing a wide variety of limits of betweenness relations. This unifies work of Adeleke, who constructed a Jordan group preserving a limit of betweenness relations, and Bhattacharjee and Macpherson who gave an alternative method using a Fra¨ıss´e-type construction. A key ingredient in their work is the notion of a tree of B-sets. We employ this, and extend its use to a wider class of examples. 



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  • J. Truss
  • Mathematics
    Mathematical Proceedings of the Cambridge Philosophical Society
  • 1996
The intuition behind the notion of a cycle-free partial order (CFPO) is that it should be a partial ordering (X, ≤ ) in which for any sequence of points (x0, x1;…, xn–1) with n ≤ 4 such that xi is

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