libghc-equivalence-dev software package provides maintaining an equivalence relation, you can install in your Ubuntu 17.04 (Zesty Zapus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libghc-equivalence-dev
libghc-equivalence-dev is installed in your system.
Make ensure the libghc-equivalence-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libghc-equivalence-dev *
You will get with libghc-equivalence-dev package name, version, architecture and description in a table
| Distro | Ubuntu 17 04 zesty zapus |
| Section | Haskell |
| Package | libghc-equivalence-dev |
| Version | 0.3.1-4 |
| Description | maintaining an equivalence relation |
| Sub Section | haskell |