00289nam a2200121 a 450000500170000002000150001708200160003210000180004824500190006626000280008530000270011349000270014020251203110058.0  a0415147964  a301.01bCOL  aCollins, Finn  aSocial reality  aLondonbRoutledgec1991  axiii,251p.c23 cm H.B.  aProblems in philosophy