The latest version of semirings is 0.7-0.
semirings
Version 0.4.2 revision 0 uploaded by chessai.
Package meta
- Synopsis
- two monoids as one, in holy haskimony
- Description
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.
- Author
- chessai
- Bug reports
- http://github.com/chessai/semirings/issues
- Category
- Algebra, Data, Data Structures, Math, Maths, Mathematics
- Copyright
- Copyright (C) 2018 chessai
- Homepage
- http://github.com/chessai/semirings
- Maintainer
- chessai <chessai1996@gmail.com>
- Package URL
- n/a
- Stability
- provisional