Theorem Set.union_eq_left_iff_subset

Modification history

2023-10-01 12:14
Mathlib/Data/Set/Basic.lean
chore: Make `Set`/`Finset` lemmas match lattice lemma names (#7378) …
Deleted Set.union_eq_left_iff_subsetView on Github →
2022-12-12 01:34
Mathlib/Data/Set/Basic.lean
feat: port Data.Set.Basic (#892) …
Added Set.union_eq_left_iff_subsetView on Github →