Abstract
We prove that Dedekind σ-completef-rings are boundedly countably atomic compact in the language (+, −, ·,Λ, ∨, ≤). This means that wheneverΓ is a countable set of atomic formulae with parameters from some Dedekind σ-completef-ringA every finite subsystem of which admits a solution in some fixed productK of bounded closed intervals ofA, thenΓ admits a solution inK.
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Wehrung, F. A compactness property of Dedekind σ-completef-rings. Algebra Universalis 36, 511–522 (1996). https://doi.org/10.1007/BF01233921
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DOI: https://doi.org/10.1007/BF01233921