Install coq-theories by entering the following commands in the terminal:
sudo apt update sudo apt install coq-theories
proof assistant for higher-order logic (theories)
Coq is a proof assistant for higher-order logic, which allows the development of computer programs consistent with their formal specification. It is developed using Objective Caml and Camlp5. . This package provides existing theories that new proofs can be based upon, including theories of arithmetic and Boolean values.