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Preprint Number 1276
1276. Ruizhang Jin Constructing Types in Differentially Closed Fields that are Analysable
in the Constants E-mail: Submission date: 4 August 2017 Abstract: Analysability of finite U-rank types are explored both in general and in
the theory DCF_0. The well-known fact that the equation
δ(log δ x)=0 is analysable in but not almost internal to
the constants is generalized to show that
(log δ ... log δ)_n x=0 is not analysable
in the constants in (n-1)-steps. The notion of a Mathematics Subject Classification: 03C45 (Primary) 12H05 (Secondary) Keywords and phrases: |

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