fact: Definition Morphism1 x (X : 'M_(x, nbgen N)) (dvdXN : X %| pres N) : 'Mor(N, FPmod X) := @Morphism _ _ (FPmod X) _ (@morphism1_subproof x X dvdXN).
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