∫ Утверждение Mathlib
isOpenMap_coe
Mathlib.Topology.Algebra.Ring.Ideal
URI: https://scilib.ai/kg/mathlib#QuotientRing.isOpenMap_coe
∫ Утверждение Mathlib
Mathlib.Topology.Algebra.Ring.Ideal
URI: https://scilib.ai/kg/mathlib#QuotientRing.isOpenMap_coe