DEPRECATION NOTICE ================== This repository is deprecated. The package is now maintained in a [fork](https://github.com/nbun/tree-monad). Thanks to @nbun for taking over maintainership! Non-Determinism Monad for Tree Search ===================================== This Haskell library provides an implementation of the MonadPlus type class that represents the search space as a tree whose constructors represent mzero, return, and mplus. Such a tree can be used to implement different search strategies, e.g., by using a queue. It can also be used as a basis for parallel search strategies that evaluate different parts of the search space concurrently.