C# pure functional programming framework - come and get declarative!

Functional patterns for Java

📓 Flexible and configurable modern #Haskell logging framework

A ReasonML/Ocaml library for category theory and abstract algebra

Functional programming and category theory for everyday JavaScript development

C++ library for semigroups and monoids

Solutions to exercises from the book Haskell Programming

multiplex: algebraic tools for the analysis of multiple social networks

A data structure for validations. It implements the applicative functor interface

A Node.js and Deno library for composing and running SQL queries.

A partial binary associative operator (appendMaybe :: a → a → Maybe a)

Abstract Algebra: An implementation of Finite Algebras: Groups, Rings, Fields, Vector Spaces, Modules, Monoids, Semigroups, and Magmas. See the ReadTheDocs link.

A collection of algebraic structures borrowed from abstract algebra. Semigroup, Monoid, Group & Field.

Computational Semigroup Theory Software System written in Clojure

Presentations on functional programming in Scala

Python bindings for the C++ library libsemigroups

Multiple typeclass instances, selected by explicit application of a phantom type parameter

Test lattice identity holding in lattice of congruences of automaton

GAP package for enumerating subsemigroups of semigroups by several different search algorithms.

Efficient non-empty vectors in Rust