000 00534 a2200181 4500
035 _aII 6056
082 _a510.6
090 _c4240
_d4240
100 _aLevy, Azriel
245 _aA hierarchy of formulas in set theory
_cby Azriel Levy
260 _aProvidence, Rhode Island
_bAmerican Mathematical Society
_c1965
300 _a76 p
_c24 cm
440 _aSeria Memoirs of the American Mathematical Society
_nNr. 57
500 _aContine bibliogr
650 _aTeoria multimilor
650 _aLogica matematica
942 _aIMAR
_cCART
999 _c4112
_d4112