brew install coq
coqc prime.v
# will produce prime.vo
coqtop
# see https://coq.inria.fr/refman/proof-engine/vernacular-commands.html
Coq < Require Import prime.
Coq < Print plus.
plus = fun n m : nat => n + m
: nat -> nat -> nat
Arguments plus (_ _)%nat_scope
Coq < Eval compute in plus 1 2.
= 3
: nat