∫ Утверждение Mathlib
instInhabited
Mathlib.Topology.Category.TopCat.OpenNhds
URI: https://scilib.ai/kg/mathlib#TopologicalSpace.OpenNhds.instInhabited
∫ Утверждение Mathlib
Mathlib.Topology.Category.TopCat.OpenNhds
URI: https://scilib.ai/kg/mathlib#TopologicalSpace.OpenNhds.instInhabited