Subsets of limited cardinality The set of subsets of of cardinality less than or equal to is sometimes denoted by or , and the set of subsets with cardinality strictly less than is sometimes denoted or . Similarly, the set of non-empty subsets of might be denoted by or .
subSeTs of liMited cardinALiTY THe set of sUbsets of Of cArdiNAlity less than or equaL TO Is sometImES dEnoTed by or , And the sET of subSets wIth cArdinalitY stRictly less than is sometimes deNOted oR . sImIlarLy, THe set of non-emPty subsetS Of mighT bE dENoTed by or .