TY - BOOK AU - Jenkins, C. S TI - Grounding concepts : an empirical basis for arithmetical knowledge SN - 9780199231577 SN - 200801545 U1 - 513.01 JEN PY - 2008/// CY - Oxford PB - Oxford University Press KW - Arithmetic - Philosophy N1 - Includes bibliographical references (p. [273]-283) and index ER -