Lipase 发表于 2025-3-21 18:06:02

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Respond 发表于 2025-3-21 22:48:32

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小平面 发表于 2025-3-22 03:31:36

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标准 发表于 2025-3-22 06:49:21

Euclidean Semirings, all . ∈ ., it is clearly true that . ∈ .(.) if and only if (math). Note that if . is a simple semiring and if . ∈ . then there exists an element r of . such that . and so, by Proposition 4.3, we have .. Thus we see that if . is an element of a simple semiring . then . &#x2260 Ø implies that . ∈ ..

paradigm 发表于 2025-3-22 10:53:52

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替代品 发表于 2025-3-22 14:42:04

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V洗浴 发表于 2025-3-22 18:45:49

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母猪 发表于 2025-3-22 21:23:06

Morphisms of Semirings,If . and . are semirings then a function . is a . if and only if: .; ..

airborne 发表于 2025-3-23 04:34:55

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obnoxious 发表于 2025-3-23 06:11:49

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查看完整版本: Titlebook: Semirings and their Applications; Jonathan S. Golan Book 1999 Springer Science+Business Media Dordrecht 1999 Algebra.Computer.computer sci