fact: Record monomorphism_of := Monomorphism { morphism_of_mono :> 'Mor(M, N); _ : injm morphism_of_mono }.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq path) mathcomp(ssralg fintype perm choice matrix bigop zmodp mxalgebra poly) ssrcomplements stronglydiscrete coherent edr