∫ Утверждение Mathlib
IsElementary
Mathlib.ModelTheory.ElementarySubstructures
URI: https://scilib.ai/kg/mathlib#FirstOrder.Language.Substructure.IsElementary
∫ Утверждение Mathlib
Mathlib.ModelTheory.ElementarySubstructures
URI: https://scilib.ai/kg/mathlib#FirstOrder.Language.Substructure.IsElementary