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Lascar Rank in Expansions

Lange, Michael
arXiv (OAI Expanded) · Papers
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We prove that the SU-rank of a supersimple theory is no greater than that of any of its supersimple expansions. A proof for finite rank theories already exists in the literature, but non-continuity presents a problem at limit ranks. We prove the non-decreasing of SU-rank in expansions type-by-type b
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