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zbMath0702.20047MaRDI QIDQ3480272

E. S. Lyapin

Publication date: 1989

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

associativity dense embeddings partial mappings partial groupoid operation

Mathematics Subject Classification ID

General structure theory for semigroups (20M10) Semigroups of transformations, relations, partitions, etc. (20M20) Sets with a single binary operation (groupoids) (20N02)

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