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corresponding to groupoids |
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Abstract: M. Novotn´y [9] defined the monounary algebra un(G, º) corresponding to a groupoid (G, º). The aim of this paper is to prove that each monounary algebra is up to isomorphism a retract of un(G, º) for some groupoid (G, º). Contact the authors: studenovska@science.upjs.sk Download PDF version of the preprint. |