TY - BOOK AU - Bouvere,Karel Louis de TI - A method in proofs of undefinability: with applications to functions in the arithmetic of natural numbers U1 - 512.81 PY - 1959/// CY - Amsterdam PB - North-Holland Pub. KW - Godel's theorem KW - Number theory N1 - Includes index; Academic thesis--Amsterdam; Bibliography: p. 59-60 ER -