专家
发表于 2025-3-21 19:57:28
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你敢命令
发表于 2025-3-21 22:51:15
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媒介
发表于 2025-3-22 02:12:44
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Charitable
发表于 2025-3-22 08:36:07
Gustav Doetschr intended meaning of logic and databases explored at the first workshop. Because of the broader coverage, and because we anticipated further workshops, the second book was entitled, Advances in Database Theory - Volume 1. The book "Logic and Databases" should be considered Volume 0 of this series.978-1-4615-9387-4978-1-4615-9385-0
发源
发表于 2025-3-22 12:04:17
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拘留
发表于 2025-3-22 16:23:19
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盘旋
发表于 2025-3-22 18:24:51
The use of first-order logic in data bases raises problems about representing relations that are not defined everywhere. The solution to this problem is to use a 3-valued logic with the truth value “undefined”. This paper is concerned with the naturalness of such a logic, its power and its connection with classical logic.
ESO
发表于 2025-3-23 00:08:33
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吹气
发表于 2025-3-23 01:38:22
Eindeutigkeitssätze und Kompatibilitätsbedingungen für die Rand- und AnfangswerteIn diesem Kapitel wollen wir einige Fragen, die uns in Spezialfällen schon früher begegnet sind, von einem allgemeineren Standpunkt aus behandeln.
轻而薄
发表于 2025-3-23 08:02:19
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