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math.LO2021★ 20 cited
On the structure of computable reducibility on equivalence relations of natural numbers
Uri Andrews, Daniel Belin, Luca San Mauro
We examine the degree structure of equivalence relations on under computable reducibility. We examine when pairs of degrees have a join. In particular, we show th…
math.LO2021
Recursive spectra of flat strongly minimal theories
Uri Andrews, Omer Mermelstein
We show that for a model complete strongly minimal theory whose pregeometry is flat, the recursive spectrum (SRM()) is either of the form for or $[0,n]\cup\{ω…