00326    a2200109   4500020001500000082001500015100002100030245007500051260005400126300002000180650001600200  a0521597188  a511.3bECC  aEccles, Peter J.  aAn introduction to mathematical reasoningbnumbers, sets and functions  aCambridgebCambridge university pressc1997g1997  axii,350p.c24cm  aMATHEMATICS