REFERENCES
- Macintyre , A. ( 1991 ). Schanuel's conjecture and free exponential rings . Annals of Pure and Applied Logic 51 : 241 – 246 .
- Shapiro , H. S. ( 1958 ). The expansion of mean-periodic functions in series of exponentials . Communications on Pure and Applied Mathematics 11 : 1 – 21 .
- Shkop , A. C. Henson and Rubel's theorem for Zilber's pseudoexponentiation . Preprint .
- van der Poorten , A. J. , Tijdeman , R. ( 1975 ). On common zeros of exponential polynomials . Enseignement Math. 21 : 57 – 67 .
- van den Dries , L. ( 1984 ). Exponential rings, exponential polynomials and exponential functions . Pacific Journal of Math. 113 : 51 – 66 .
- Zilber , B. ( 2005 ). Pseudo-exponentiation on algebraically closed fields of characteristic zero . Annals of Pure and Applied Logic 132 : 67 – 95 .
- Communicated by D. Macpherson.