Theorem ssubset_trans

Modification history

2026-07-06 15:50
Mathlib/Order/RelClasses.lean
feat: use `LE.le` for subset relation in `Set`, `Finset`, `PSet`, `ZFSet`, `Class` (#32983) …
Deleted ssubset_transView on Github →
2023-02-22 14:18
Mathlib/Order/RelClasses.lean
chore: update SHA of already forward-ported files (#2181) …
Modified ssubset_transView on Github →
2023-01-25 21:06
Mathlib/Order/RelClasses.lean
Feat: prove `IsTrans α r → Trans r r r` and `Trans r r r → IsTrans α r` (#1522) …
Modified ssubset_transView on Github →
2023-01-11 08:02
Mathlib/Order/RelClasses.lean
feat: A set is either a subsingleton or nontrivial (#1047) …
Modified ssubset_transView on Github →
2022-11-18 03:37
Mathlib/Order/RelClasses.lean
feat: port Order.RelClasses (#560) …
Added ssubset_transView on Github →