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Theorem
Set.not_mem_singleton_iff
Modification history
2025-05-25 12:30
Mathlib/Data/Set/Insert.lean
chore(*): not_mem/nmem -> notMem (#25159)
Deleted
Set.not_mem_singleton_iff
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2025-02-09 06:38
Mathlib/Data/Set/Basic.lean
chore(Data/Set/Basic): split `insert` / `singleton` / `pair` to new file (#21567) …
Modified
Set.not_mem_singleton_iff
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2024-07-16 16:36
Mathlib/Data/Set/Basic.lean
feat: add lemma not_mem_singleton_iff (#14443) …
Added
Set.not_mem_singleton_iff
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