Theorem Set.exists_mem_biUnion

Modification history

2026-08-24 10:14
Mathlib/Data/Set/Lattice.lean
refactor(Data/Set): split long file Lattice.lean (#43030) …
Modified Set.exists_mem_biUnionView on Github →
2026-08-16 17:38
Mathlib/Data/Set/Lattice.lean
chore(Data/Set): add missing `Set.forall_mem_*` lemmas (#42549) …
Added Set.exists_mem_biUnionView on Github →