fact: Definition Bezout_step (a b : R) (m n : nat) (M : 'M_(1 + m,1 + n)) (k : 'I_m) := let:(_,u,v,a1,b1) := egcdr a b in combine_step u v (-b1) a1 M k.
imports: HB(structures) Coq(ssreflect ssrfun ssrbool Arith.Wf_nat) mathcomp(eqtype ssrnat div seq path) mathcomp(ssralg fintype perm tuple choice generic_quotient) mathcomp(matrix bigop zmodp mxalgebra poly) stronglydiscrete