∫ Утверждение Mathlib
isOpen_upperHalfPlaneSet
Mathlib.Analysis.Complex.UpperHalfPlane.Basic
URI: https://scilib.ai/kg/mathlib#UpperHalfPlane.isOpen_upperHalfPlaneSet
∫ Утверждение Mathlib
Mathlib.Analysis.Complex.UpperHalfPlane.Basic
URI: https://scilib.ai/kg/mathlib#UpperHalfPlane.isOpen_upperHalfPlaneSet