Theorem ssubset_or_eq_of_subset

Modification history

2026-01-07 07:34
Mathlib/Order/RelClasses.lean
chore(Order/Defs/Unbundled): deprecate `IsAntisymm` in favor of core's `Std.Antisymm` (#33685)
Modified ssubset_or_eq_of_subsetView on Github →
2022-11-18 03:37
Mathlib/Order/RelClasses.lean
feat: port Order.RelClasses (#560) …
Added ssubset_or_eq_of_subsetView on Github →