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20N02 - Group theory and generalizations :: Other generalizations of groups :: Sets with a single binary operation

absorbing element owned by pahio equation owned by pahio groupoid owned by akrowne groupoid and group representations related to quantum symmetries owned by bci1 groupoid representation theorem owned by bci1 idempotency owned by yark identity element owned by mclase isotope of a groupoid owned by CWoo left identity and right identity owned by mclase zero elements owned by mclase
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