fact: Definition tabnat_of_ord (t : tabsh la) := StdtabSh (sh := la) (tabnat_of_ord_subproof t).
imports: HB(structures) mathcomp(all_ssreflect) mathcomp(ssralg ssrint fingroup perm) mathcomp(mpoly) tools combclass ordtype sorted partition tableau skewpart skewtab antisym Schur_mpoly freeSchur therule std stdtab unitriginv presentSn