Theorem UpperSet.erase_idem

Modification history

2025-03-24 10:45
Mathlib/Order/UpperLower/Basic.lean
chore: split `Order.UpperLower.Basic` (#23248) …
Modified UpperSet.erase_idemView on Github →
2023-10-21 10:50
Mathlib/Order/UpperLower/Basic.lean
feat: Removing elements from a lower set (#7374) …
Added UpperSet.erase_idemView on Github →