addListToFM addListToFM_C addToFM addToFM_C delFromFM delListFromFM elemFM eltsFM emptyFM eqFM filterFM fmSortBy fmToList fmToListPreOrder foldFM intersectFM intersectFM_C isEmptyFM keyOrder keysFM listToFM lookupFM lookupWithDefaultFM mapFM maxFM minFM minusFM plusFM plusFM_C readFM showFM sizeFM splitFM unitFM updFM