# Boolean normal forms [![Build Status](https://travis-ci.org/phadej/boolean-normal-forms.svg?branch=master)](https://travis-ci.org/phadej/boolean-normal-forms) This library provides types that might be useful in symbolic manipulation of propositional logic expressions. ## Features - **CNF** (list and set) - **DNF** (list and set) - **NNF** (tree and set) - FreeBoolean type useful in testing Distributed under MIT license © Oleg Grenrus 2014