TY  - BOOK
AU  - Eccles, Peter J.
TI  - An introduction to mathematical reasoning: numbers,sets and functions 
SN  - 0521597188
U1  - 511.3 
PY  - 1997///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Proof theory
N1  - Includes bibliographical references and index
ER  -