fact: Definition mono_of phi (phi_mono : is_mono phi) := @Monomorphism phi (@introTF _ _ true (monoP phi) phi_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