Exner Robert M <br/><br/>
Logic in elementary mathematics 

 -  1959 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>61765 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mathematical logic<br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>B:R1, J9