Theorem LE.le.sdiff_ssubset_of_nonempty

Modification history

2026-07-06 15:50
Mathlib/Order/BooleanAlgebra/Set.lean
feat: use `LE.le` for subset relation in `Set`, `Finset`, `PSet`, `ZFSet`, `Class` (#32983) …
Added LE.le.sdiff_ssubset_of_nonemptyView on Github →