Theorem Set.diff_union_diff_cancel

Modification history

2025-07-03 15:35

Mathlib/Data/Set/Basic.lean

chore: move `BooleanAlgebra` material on `Set` out of `Data` (#26665) …

Modified Set.diff_union_diff_cancel View on Github →

2023-04-24 08:51

Mathlib/Data/Set/Basic.lean

feat: `insert` and `erase` lemmas (#3569) …

Added Set.diff_union_diff_cancel View on Github →