GIDDY 发表于 2025-3-28 15:10:55

Relativizations,s of . are restricted to a subset of . that is closed under these operations. In the former, the fundamental operations of . are relativized to the subset of all elements below a given element. Relativizations play a fundamental role in the study of direct decompositions of relation algebras.

llibretto 发表于 2025-3-28 20:28:12

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encomiast 发表于 2025-3-29 00:07:50

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啮齿动物 发表于 2025-3-29 04:32:21

Simple algebras,Every homomorphic image of a relation algebra . is isomorphic to a quotient of . modulo some ideal, by the First Isomorphism Theorem 8.39. Larger ideals lead to structurally simpler homomorphic images than smaller ideals, because larger ideals “glue” more elements together than smaller ones.

旁观者 发表于 2025-3-29 10:52:34

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Goblet-Cells 发表于 2025-3-29 14:01:32

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愤慨一下 发表于 2025-3-29 18:40:35

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drusen 发表于 2025-3-29 22:33:25

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Trochlea 发表于 2025-3-30 00:14:00

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Alveolar-Bone 发表于 2025-3-30 04:58:26

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查看完整版本: Titlebook: Introduction to Relation Algebras; Relation Algebras, V Steven Givant Textbook 2017 Springer International Publishing AG 2017 Relation alge