You can search for identifiers within the package.
in-package search v0.2.0
fix
Prod.Make
module L : CARDINAL
module R : CARDINAL
type nonrec n = (L.n, R.n) n
include CARDINAL with type n := n
val n : n cardinal
val inj : L.n index -> R.n index -> n index
val prj : n index -> L.n index * R.n index