proposition: Lemma lagrange_full : basis_of fullv lagrange.
proof: Proof. by rewrite basisEfree lagrange_free subvf size_lagrange dim_polyn /=. Qed.
imports: HB(structures) mathcomp(ssreflect ssrfun ssrbool eqtype ssrnat seq choice fintype tuple) mathcomp(bigop binomial finset finfun ssralg countalg finalg poly polydiv) mathcomp(perm fingroup matrix mxalgebra mxpoly vector countalg)