TY - BOOK AU - Crossley, J. N. AU - Ash, C . J. AU - Brickhill, C. J. AU - Stillwell, J. C. AU - Williams, N. H. TI - What is mathematical logic? SN - 0198880871 PY - 1972/// CY - London PB - Oxford University Press KW - Mathematics KW - Mathematics- Calculus KW - Mathematics- Recursive Functions ER -