Survey of generalized pregroups and a question of Reinhold Baer

Anthony M. Gaglione, Seymour Lipschutz, Dennis Spellman

Abstract


There has been recent interest in Stallings’ Pregroups. (See [2] and [12].) This paper gives a survey of generalized pregroups. We also answer a question of Reinhold Baer [1] on pregroups and answer a generalization of this question for generalized pregroups.


Keywords


Pregroups, Kushner Axiom K. small cancellation

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