Mathlib Changelog
v4
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2026-05-12 21:04
e3960f5c
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feat(Topology): test strictness on quotient and subspaces (
#39210
)
Estimated changes
Modified
Mathlib/Topology/Connected/TotallyDisconnected.lean
Modified
Mathlib/Topology/Maps/Basic.lean
Modified
Mathlib/Topology/Maps/Strict/Basic.lean
added
theorem
Topology.IsEmbedding.isStrictMap
added
theorem
Topology.IsEmbedding.isStrictMap_iff
added
theorem
Topology.IsHomeomorph.isStrictMap
added
theorem
Topology.IsQuotientMap.isStrictMap
added
theorem
Topology.IsQuotientMap.isStrictMap_iff
added
theorem
Topology.IsStrictMap.id
added
theorem
Topology.isEmbedding_iff_isStrictMap_injective
added
theorem
Topology.isQuotientMap_iff_isStrictMap_surjective