TY  - BOOK
AU  - Copi, Irving M.
TI  - Symbolic logic
SN  - 81-203-0970-7
U1  - 621.3 
PY  - 2005///
CY  - New Delhi
PB  - Prentice-Hall
KW  - Method- Deduction
KW  - Qualification theory
KW  - Set theory
N1  - Includes index; M. R. book
ER  -