Luthar, I.S. <br/><br/>
Sets functions and numbers 

 - New Delhi  Narosa  2005 
 - ix, 339p.  24cm. 
<br/><br/><label>ISBN: </label>8173196680 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematical logic
<br/><br/><label>Dewey Class. No.: </label>511.322  / LUT