Theorem Set.symmDiff_iUnion_subset

Modification history

2026-08-24 10:14
Mathlib/Data/Set/Lattice.lean
refactor(Data/Set): split long file Lattice.lean (#43030) …
Modified Set.symmDiff_iUnion_subsetView on Github →
2026-05-26 14:39
Mathlib/Data/Set/Lattice.lean
feat: a lemma about the symmetric difference of unions (#38536) …
Added Set.symmDiff_iUnion_subsetView on Github →