fact: Definition eq_prod_seqpoly (x y : (seqpoly C * seqpoly C)) := (eq_op x.1 y.1) && (eq_op x.2 y.2).
imports: mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat div seq ssralg) mathcomp(path choice fintype tuple finset bigop poly polydiv) CoqEAL(hrel param refinements poly_op)