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2.25 (1966)

Partially Solved

a) (L. Fuchs). Describe the groups which are linearly orderable in only finitely many ways.
b) Do there exist groups that are linearly orderable in countably many ways?

Contributor: A. I. Kokorin

Progress

b) Yes, there do (R. N. Buttsworth, Bull. Austral. Math. Soc., 4 (1971), 97–104).

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