Install libghc-boolean-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-boolean-doc
Description:
generalized booleans; documentation
It contains some classes for generalized boolean operations. . This package provides the documentation for a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: http://hackage.haskell.org/package/Boolean
Version: 0.2.4-1
Section: universe/doc