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Preprint Number 1691
1691. Samuel Braunfeld, Michael C. Laskowski Mutual algebraicity and cellularity E-mail: Submission date: 14 November 2019 Abstract: We prove two results intended to streamline proofs about cellularity that pass through mutual algebraicity. First, we show that a countable structure M is cellular if and only if M is ω-categorical and mutually algebraic. Second, if a countable structure M in a finite relational language is mutually algebraic non-cellular, we show it admits an elementary extension adding infinitely many infinite MA-connected components. Mathematics Subject Classification: 03C15 Keywords and phrases: |
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