prooftree command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

prooftree: command not found

or when using sudo you get the following error message

sudo: prooftree: command not found

Solutions to prooftree: command not found

How To Fix prooftree: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu prooftree is provided by prooftree package.

prooftree is:

Prooftree draws proof trees during interactive proof development with Proof General. One can inspect goals and proof commands and check where existential variables were introduced and instantiated. Currently, Prooftree does only work for Coq.

To fix this problem, we can install more using the command below.

sudo apt-get -y install prooftree

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install prooftree.

sudo apt -y install prooftree

Or if you have aptitude installed you can use the following command.

sudo aptitude install prooftree

Summary

In this tutorial we learn how to fix prooftree command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.