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Results tagged with model-theory
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user 3206
Model theory is the branch of mathematical logic which deals with the connection between a formal language and its interpretations, or models.
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The existence of an algebra whose set of identities and first order theory are equivalent
I imagine that definitions of $Mod, Th, Var$ and so on have not changed since I saw them decades ago. The trivial one element algebra in any finite type (and likely any infinite type) is an easy exam …
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