Philosophy of mathematics :  selected readings / 
edited and with an introduction by Paul Benacerraf and Hilary Putnam. 
 - Oxford :  Blackwell,  [1964] 
 - Prentice-Hall philosophy series .
<br/><br/>Bibliography: p. 529-536. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics -- Philosophy.--Mathematics -- Philosophy.