∫ Утверждение Mathlib
secondCountableTopology
Mathlib.Geometry.Manifold.IsManifold.Basic
URI: https://scilib.ai/kg/mathlib#ModelWithCorners.secondCountableTopology
∫ Утверждение Mathlib
Mathlib.Geometry.Manifold.IsManifold.Basic
URI: https://scilib.ai/kg/mathlib#ModelWithCorners.secondCountableTopology