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arxiv: 1702.03487 · v2 · pith:BCNOADRKnew · submitted 2017-02-12 · 🧮 math.LO

Iterated Ultrapowers for the Masses

classification 🧮 math.LO
keywords frameworkindiscerniblesiteratedultrapowersbuildingcertainconstructiondubbed
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We present a novel, perspicuous framework for building iterated ultrapowers. Furthermore, our framework naturally lends itself to the construction of a certain type of order indiscernibles, here dubbed tight indiscernibles, which are shown to provide smooth proofs of several results in general model theory.

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