000 00349nam a2200133Ia 4500
008 211217s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aRueff, Marcel
245 0 _aSets & boolean algebra
260 _bGeorge Allen & Unvin
_aLondon
_c1970
300 _a192p p.
653 _aSet theory
942 _c1
999 _c132372
_d132372