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On a question of Frege's about right-ordered groups. Bull. London Math. Soc, 19 (1987), 513-521.
DOI 10.1112/blms/19.6.513 |
MR 0915427
[2] G. Frege: Die Grundgesetze der Arithmetik. Band II, Jena 1903.
[4] S. Varaksin: Semilinear orders on solvable and nilpotent groups. (in Russian), preprint.