Theorem upperHemicontinuousWithinAt_iff_preimage_Iic

Modification history

2025-12-17 18:54
Mathlib/Topology/Semicontinuity/Hemicontinuity.lean
refactor: generalize semicontinuity (#32521) …
Added upperHemicontinuousWithinAt_iff_preimage_IicView on Github →