Makkai, Michael,  1939- <br/><br/>
Duality and definability in first order logic/ 
Michael Makkai. 
 - Providence, R.I.:  American Mathematical Society,  c1993. 
 - x, 106 p.:  ill.;  26 cm. 
 - Memoirs of the American Mathematical Society;  no. 503. .
<br/><br/> "September 1993, volume 105, number 503 (fourth of 6 numbers)." 
<br/><br/>Includes bibliographical references (p. 105-106). 
<br/><br/><label>ISBN: </label>0821825658 (acid-free paper) 
<br/><br/><label>LCCN: </label>93004868 
<br/><br/><label>Nat. Bib. No.: </label>GB95-25334 
<br/><br/><label>Subjects--Topical Terms: </label><br/>First-order logic.<br/>Duality theory (Mathematics)<br/>Toposes.
<br/><br/><label>Dewey Class. No.: </label>510 s  511.3