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Generalised Groups,ies. Turning to semigroups of partial transformations, Wagner noted that the semigroup of all one-to-one partial transformations of a set forms a generalised group, and, moreover, that any generalised group may be represented as one of these, a result now termed the ..摘要 发表于 2025-3-22 09:34:36
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A Ternary Algebraic Operation in the Theory of Coordinate Structures, A . K on . is a subset of .. A ternary operation can be defined in . by (......) = ......., where. indicates the inverse of an injective partial mapping. Wagner’s main interest was in those coordinate structures that have closure properties with respect to this operation. The purpose of this paper兵团 发表于 2025-3-22 18:10:49
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On the Theory of Partial Transformations,ting the collection of all such relations by .. He noted that the latter forms a semigroup under composition of binary relations; this semigroup is ordered by set inclusion and, moreover, has a natural involution, via which any binary relation is sent to its inverse. Wagner called a subset of . . ifinfatuation 发表于 2025-3-23 04:48:21
On the Theory of Partial Transformations,ting the collection of all such relations by .. He noted that the latter forms a semigroup under composition of binary relations; this semigroup is ordered by set inclusion and, moreover, has a natural involution, via which any binary relation is sent to its inverse. Wagner called a subset of . . if讨好美人 发表于 2025-3-23 09:09:48
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