fact: Definition Bareiss (n: nat) (M: 'M[R]_(1 + n)) := Bareiss_rec 1 M.
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq path) mathcomp(ssralg fintype perm choice) mathcomp(matrix bigop zmodp mxalgebra poly polydiv mxpoly) ssrcomplements dvdring minor atomic_operations