fact: Definition eq_prod_hpoly (x y : (@hpoly P C * @hpoly P C)) := (eq_hpoly (N:=N) x.1 y.1) && (eq_hpoly (N:=N) x.2 y.2).
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq zmodp) mathcomp(path choice fintype tuple finset ssralg bigop poly polydiv) CoqEAL(param refinements pos hrel poly_op)