proposition: Fact esympolyf_eval_is_linear : linear sympolyf_eval.
proof: Proof. rewrite /sympolyf_eval => r /= u v; apply val_inj. by rewrite linearP /= raddfD /= mmapZ /= mulr_algl. Qed.
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssralg ssrint fingroup perm) mathcomp(ssrcomplements freeg mpoly) sorted tools ordtype permuted partition skewpart composition Yamanouchi std tableau stdtab skewtab permcent antisym Schur_mpoly therule Schur_altdef unitriginv