Theorem isOpen_fold

Modification history

2024-01-26 03:44
Mathlib/Topology/Basic.lean
chore(Topology/Basic): re-use variables; rename a : X to x : X (#9993)
Modified isOpen_foldView on Github →
2024-01-24 10:41
Mathlib/Topology/Basic.lean
chore(Topology/Basic): rename variables (#9956) …
Modified isOpen_foldView on Github →
2023-01-31 07:32
Mathlib/Topology/Basic.lean
Feat: add notation `IsOpen[t]` and `IsClosed[t]` (#1957) …
Modified isOpen_foldView on Github →
2023-01-26 08:19
Mathlib/Topology/Basic.lean
feat: port Topology.Basic (#1826)
Added isOpen_foldView on Github →