TY  - BOOK
AU  - Beck, Matthias
AU  - Geoghegan, Ross
TI  - Art of proof : basic training for deeper mathematics
T2  - Undergraduate texts in mathematics
SN  - 978-1-4419-7022-0
U1  - 511.36 23rd.
PY  - 2010///
CY  - New York
PB  - Springer
KW  - Proof theory
UR  - www.springer.com
ER  -