Also known as rig
In abstract algebra, a semiring is an algebraic structure. Semirings are a generalization of rings, dropping the requirement that each element must have an additive inverse. At the same time, semirings are a generalization of bounded distributive lattices.
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Article · 中文
在抽象代数中，半环是类似于环但没有加法逆元的代数结构。偶尔使用术语 rig - 这起源于一个笑话，rig 是没有 negative 元素的 ring。
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