Theorem Subsemigroup.mem_iSup_of_directed

Modification history

2026-05-05 10:37
Mathlib/Algebra/Group/Subsemigroup/Membership.lean
feat(Order/Directed): directedness under composition by a surjective function (#38861) …
Modified Subsemigroup.mem_iSup_of_directedView on Github →
2023-05-14 07:05
Mathlib/GroupTheory/Subsemigroup/Membership.lean
chore: Rename to `sSup`/`iSup` (#3938) …
Added Subsemigroup.mem_iSup_of_directedView on Github →