Install hol88-contrib-source by entering the following commands in the terminal:
sudo apt update sudo apt install hol88-contrib-source
Description:
Higher Order Logic, user contributed source
The HOL System is an environment for interactive theorem proving in a higher-order logic. Its most outstanding feature is its high degree of programmability through the meta-language ML. The system has a wide variety of uses from formalizing pure mathematics to verification of industrial hardware. Academic and industrial sites world-wide are using HOL.
Version: 2.02.19940316-35
Section: universe/math