TY  - BOOK
AU  - Chartrand,Gary
AU  - Polimeni,Albert D.
AU  - Zhang,Ping
TI  - Mathematical proofs: a transition to advanced mathematics.- 3rd ed. 
SN  - 9780321797094
U1  - 510.2 
PY  - 2013///
CY  - Boston
PB  - Pearson/Addison Wesley
KW  - Proof theory
KW  - Textbooks
ER  -