Theorem Set.singleton_subset_singleton

Modification history

2025-02-09 06:38
Mathlib/Data/Set/Basic.lean
chore(Data/Set/Basic): split `insert` / `singleton` / `pair` to new file (#21567) …
Modified Set.singleton_subset_singletonView on Github →
2023-04-01 16:28
Mathlib/Data/Set/Basic.lean
chore: Miscellaneous lemmas (#3213) …
Added Set.singleton_subset_singletonView on Github →