00333nam a2200145Ia 4500003000500000008004100005020000900046040000900055041001200064082002500076100002000101245004100121260000900162650001600171NDCL180829s9999||||ii |||||||||||||| ||eng||  a6783  aNDCL  aEnglish  a517.521 SRR216th ed  aStoll, Robert R 0aSet theory and logiccRobert R Stoll  c1976  aMathematics