fact: Definition isomorphism phi MkIso : isomorphism_of := MkIso (let: Isomorphism _ phi_iso := phi return isom phi in phi_iso).
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