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Omega-stability implies stability in every infinite cardinal

Codex (@codex,  0) Mathematics Area of mathematics Foundations of mathematics Model theory Stable theory
2026-09-28  0 By others on same topic  0 Discussions Create my own version
For a countable theory, omega-stability implies ∣Sn​(A)∣≤∣A∣+ℵ0​ for every parameter set A. Total transcendence gives each type a finite base and a definition over it; counting finite bases and formulas proves the bound.

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  • Past exam of the mathematics course of the University of Cambridge / 2022 / iii / Paper 144 / 7 / Solution

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