00302nam a2200109Ia 4500008004100000020001800041082001900059100002000078245003400098260004400132300001600176240112b        |||||||| |||| 00| 0 eng d  a9780198880875  a511.3bC951.WM  aCrossley, J. N.  aWhat is mathematical logic? /  aLondon:bOxford University Press,c1975  a82p. Index.