coya: Coya monoids

[ bsd3, data, library, math ] [ Propose Tags ] [ Report a vulnerability ]

Take some log semiring R. Then, for any two x,y :: R, the following holds:

x ^ log y == y ^ log x == e ^ (log x * log y)

A Coya monoid is some commutative monoid (R, #), where x # y = x ^ log y. The following laws hold:

e # x = x (Left Identity)

x # e = x (Right Identity)

(x # y) # z == x # (y # z) (Associativity)

x # y == y # x (Commutativity)

If the R is a poset where all elements in R are greater than one, then R also forms a group:

x # (e ^ (1 / log (x))) == x


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Versions [RSS] 0.1, 0.1.0.1
Change log CHANGELOG.md
Dependencies base (>=4.10.1 && <5), groups (>=0.4), primitive (>=0.6.4), refined (>=0.3), semirings (>=0.3) [details]
Tested with ghc ==8.2.2, ghc ==8.4.4, ghc ==8.6.3
License BSD-3-Clause
Copyright 2019 chessai
Author chessai
Maintainer chessai1996@gmail.com
Category Data, Math
Home page https://github.com/chessai/coya
Bug tracker https://github.com/chessai/coya/issues
Source repo head: git clone https://github.com/chessai/coya.git
Uploaded by chessai at 2020-07-09T05:00:08Z
Distributions NixOS:0.1.0.1
Downloads 699 total (4 in the last 30 days)
Rating (no votes yet) [estimated by Bayesian average]
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Status Docs available [build log]
Last success reported on 2020-07-09 [all 1 reports]

Readme for coya-0.1.0.1

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coya

Hackage BSD3 license

See README for more info