The rational field is not universally definable in pseudo-exponentiation
Volume 232 / 2016
Fundamenta Mathematicae 232 (2016), 79-88
MSC: 03C10, 03C60.
DOI: 10.4064/fm232-1-6
Abstract
We show that the field of rational numbers is not definable by a universal formula in Zilber's pseudo-exponential field.