Mathlib Changelog
v4
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Commit
2025-09-21 19:07
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feat(Topology/Maps):
IsOpenMap
and
ClusterPt
(
#23240
)
Estimated changes
Modified
Mathlib/Topology/ClusterPt.lean
added
theorem
mem_interior_iff_not_clusterPt_compl
Modified
Mathlib/Topology/Maps/Basic.lean
added
theorem
Topology.IsInducing.IsOpenMap.clusterPt_comap
added
theorem
Topology.IsInducing.isOpenMap_iff_clusterPt_comap