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@Chapter Overview
@Chapter Pregroups
@Chapter Pregroup Presentations
@Section Concepts
Given a pregroup <M>P</M> there is a universal group <M>\mathcal{U}(P)</M> that
contains <M>P</M>. The concept of a pregroup presentation is a generalisation of
presentations over the free group, that is a pregroup presentation is a way of
defining a group as a quotient of a universal group over a pregroup by giving
relator words over the pregroup.
For the purposes of the RSym tester we introduce some more concepts.
@Subsection Locations
@Subsection Places
[Dauer der Verarbeitung: 0.2 Sekunden, vorverarbeitet 2026-06-13]
