000			00694nam a2200265Ia 4500
003			HQRS
005			20180619041548.0
008			150617s2014 xx 000 0 eng d
040			_aHQRS _beng _cHQRS
041			_heng
100			_aHughes, G.E.
245			_aElements of formal logic
250			_astudents' low edition
260			_aBombay: _bB.I. Publishing House, _c1967
300			_axii, 398p.; _c20cm.
440			_aUniversity paperbacks; UP155
500			_aIncludes bibliography and index
650			_aLogic
650			_aFormal logic
650			_aMathematics
650			_aSymbolic logic
700			_aLondey, D.G.
365			_aINR _bComp.
942			_2udc _cBK
999			_c9043 _d9043