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Theorem
Set.eq_singleton_or_nontrivial
Modification history
2024-04-18 05:39
Mathlib/Data/Set/Basic.lean
chore: split `Subsingleton,Nontrivial` off of `Data.Set.Basic` (#11832) …
Modified
Set.eq_singleton_or_nontrivial
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2023-06-12 01:02
Mathlib/Data/Set/Basic.lean
chore: formatting issues (#4947)
Modified
Set.eq_singleton_or_nontrivial
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2023-01-11 08:02
Mathlib/Data/Set/Basic.lean
feat: A set is either a subsingleton or nontrivial (#1047) …
Added
Set.eq_singleton_or_nontrivial
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