TY  - BOOK
AU  - Feys, Robert,
AU  - Ficth, Frederic Brenton.
TI  - Dictionary of symbols of mathematical logic
U1  - 164.03 FEY 
PY  - 1969///
CY  - Amsterdam
PB  - North-Holland Pub. Co.,
KW  - Logic, Symbolic and mathematical
KW  - Mathematical notation
ER  -