TY  - BOOK
AU  - Detlefsen,Michael
TI  - Proof, logic, and formalization
SN  - 0415023351
AV  - QA9 P962 1991
PY  - 1992///
CY  - London, New York
PB  - Routledge
KW  - Proof theory
KW  - Logic, Symbolic and mathematical
N1  - HKBU library; YT2025 M10
ER  -