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Theorems · Definition · logic and foundations

FirstOrder.Language.IsUltrahomogeneous

(L : FirstOrder.Language) → (M : Type w) → [L.Structure M] → Prop

A structure M is ultrahomogeneous if every embedding of a finitely generated substructure into M extends to an automorphism of M.

Defined in
Mathlib.ModelTheory.Fraisse
Cited by
5 results in Mathlib
Foundations
Depth 70 from the axioms · uses propext, Classical.choice, Quot.sound
Assumes
FirstOrder.Language.Structure

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