Mendelson, Elliott. <br/><br/>
Introduction to mathematical logic 
Elliott Mendelson. 
 - 2nd ed. 
 - London  Van Nostrand Reinhold  c 1979. 
 - viii,328p.  ill.;  24cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0442301855 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.