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2025-09-11 07:52
0b0e1dd6
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feat: the topology on WithTop is second countable (
#29466
)
Estimated changes
Modified
Mathlib.lean
Created
Mathlib/Data/Fintype/WithTopBot.lean
Modified
Mathlib/Order/Interval/Set/WithBotTop.lean
added
theorem
WithBot.Icc_coe
added
theorem
WithBot.Ici_coe
added
theorem
WithBot.Ico_coe
added
theorem
WithBot.Iic_coe
added
theorem
WithBot.Iio_coe
added
theorem
WithBot.Ioc_coe
added
theorem
WithBot.Ioi_coe
added
theorem
WithBot.Ioo_coe
added
theorem
WithTop.Icc_coe
added
theorem
WithTop.Ici_coe
added
theorem
WithTop.Ico_coe
added
theorem
WithTop.Iic_coe
added
theorem
WithTop.Iio_coe
added
theorem
WithTop.Ioc_coe
added
theorem
WithTop.Ioi_coe
added
theorem
WithTop.Ioo_coe
Modified
Mathlib/Topology/Bases.lean
added
theorem
TopologicalSpace.IsTopologicalBasis.exists_countable
added
theorem
TopologicalSpace.IsTopologicalBasis.exists_countable_biUnion_of_isOpen
added
theorem
TopologicalSpace.exists_countable_of_generateFrom
Modified
Mathlib/Topology/Order/Basic.lean
added
theorem
exists_countable_generateFrom_Ioi_Iio
added
theorem
isOpen_Iio'
added
theorem
isOpen_Ioi'
added
theorem
isTopologicalBasis_biInter_Ioi_Iio_of_generateFrom
Created
Mathlib/Topology/Order/WithTop.lean