Kelly, John J.,  1940-1995 <br/><br/>
Essence of logic / 
 Logic 
John J. Kelly. 
 - New York :  London ;  Prentice Hall,  1997. 
 - xiv, 258 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 250) and index. 
<br/><br/><label>ISBN: </label>0133963756 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science<br/>Logic Symbolic and mathematical
<br/><br/><label>LC Class. No.: </label>QA76