Theorem Set.ssubset_iff_sdiff_singleton

Modification history

2025-07-05 02:43
Mathlib/Data/Set/Insert.lean
chore(Data/Set/Image): move `BooleanAlgebra` material to `Order` (#26763) …
Modified Set.ssubset_iff_sdiff_singletonView on Github →
2025-02-09 06:38
Mathlib/Data/Set/Basic.lean
chore(Data/Set/Basic): split `insert` / `singleton` / `pair` to new file (#21567) …
Modified Set.ssubset_iff_sdiff_singletonView on Github →
2023-12-09 13:26
Mathlib/Data/Set/Basic.lean
feat: Finsets and multisets are graded (#8892) …
Added Set.ssubset_iff_sdiff_singletonView on Github →