Tubbs, Robert,  1954- <br/><br/>
What is a number? :  mathematical concepts and their origins / 
Robert Tubbs. 
 - Baltimore :  Johns Hopkins University Press,  2009. 
 - x, 305 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. [281]-290) and index. 
<br/><br/>Mysticism, number, and geometry : an introduction to Pythagoreanism -- The Elgin Marbles and Plato's geometric chemistry -- An introduction to infinity -- The flat Earth and the spherical sky -- Theology, logic, and questions about angels -- Time, infinity, and incommensurability -- Medieval theories of vision and the discovery of space -- The shape of space and the fourth dimension -- What is a number? -- The dual nature of points and lines -- Modern mathematical infinity -- Elegance and truth. 
<br/><br/><label>ISBN: </label>9780801890178 (hardcover : acidfree paper) 9780801890185 (pbk. : acid-free paper) 0801890179 (hardcover : acid-free paper) 0801890187 (pbk. : acid-free paper) 
<br/><br/><label>LCCN: </label>2008013745 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Philosophy.<br/>Logic, Symbolic and mathematical.<br/>Mathematics--History.
<br/><br/><label>LC Class. No.: </label>QA8.4  / .T83 2009 
<br/><br/><label>Dewey Class. No.: </label>510.1