000			00327nam a2200121 4500
245			_aIntroduction to the Galois correspondence _cMaureen H. Fenrick
100			_aFenrick, Maureen H.
260			_aBoston _bHirkhauser _cc1992
300			_axi, 192p.; 24cm.
020			_a081763522X
082			_a512.32 _bFEN
650			_aSet Theory
999			_c55017 _d55017