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套件:libghc-semirings-dev(0.6-2 以及其他的)

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two monoids as one, in holy haskimony

Haskellers are usually familiar with monoids and semigroups. A monoid has an appending operation `<>` (or `mappend`), and an identity element, `mempty`. A semigroup has an appending `<>` operation, but does not require a `mempty` element.

A Semiring has two appending operations, `plus` and `times`, and two respective identity elements, `zero` and `one`.

More formally, a Semiring R is a set equipped with two binary relations `+` and `*`, such that:

(R,+) is a commutative monoid with identity element 0,

(R,*) is a monoid with identity element 1,

(*) left and right distributes over addition, and

multiplication by '0' annihilates R.

This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.

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下載 libghc-semirings-dev

下載可用於所有硬體架構的
硬體架構 版本 套件大小 安裝後大小 檔案
amd64 0.6-2+b1 269。8 kB2,748。0 kB [檔案列表]
arm64 0.6-2+b1 360。3 kB4,089。0 kB [檔案列表]
armel 0.6-2+b1 344。0 kB3,481。0 kB [檔案列表]
armhf 0.6-2+b1 337。3 kB3,441。0 kB [檔案列表]
i386 0.6-2+b1 419。9 kB3,560。0 kB [檔案列表]
mips64el 0.6-2+b1 357。2 kB4,469。0 kB [檔案列表]
mipsel 0.6-2+b1 339。8 kB3,676。0 kB [檔案列表]
ppc64el 0.6-2+b1 360。6 kB4,232。0 kB [檔案列表]
s390x 0.6-2+b1 392。7 kB4,324。0 kB [檔案列表]