Install libghc-kan-extensions-doc by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-kan-extensions-doc
Description:
Kan extensions, Kan lifts, etc.; documentation
Kan extensions, Kan lifts, various forms of the Yoneda lemma, and (co)density (co)monads. . 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://github.com/ekmett/kan-extensions/
Version: 5.0.2-1build3
Section: universe/doc