他去就结束 发表于 2025-4-1 01:53:47

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Adj异类的 发表于 2025-4-1 09:01:44

,7. Kapitel Völkerschlachtdenkmal,an a collection of pure subgroups .. indexed by an initial segment of ordinals with the property that .. ≤ .. when . < α and α whenever a is a limit ordinal. Especially, by a . it is meant any union .=U... of pure subgroups, where .. ≤ G . for each n <ω.
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查看完整版本: Titlebook: Abelian Groups and Modules; Proceedings of the P Alberto Facchini,Claudia Menini Conference proceedings 1995 Springer Science+Business Medi