theorem
PiBase.instPolishSpaceOfSeparableSpaceOfIsCompletelyMetrizableSpace
{X : Type u}
[TopologicalSpace X]
[TopologicalSpace.SeparableSpace X]
[TopologicalSpace.IsCompletelyMetrizableSpace X]
:
Theorem T201: P26 (SeparableSpace) + P55 (IsCompletelyMetrizableSpace) => P116 (PolishSpace)