Theorem ZFSet.isTransitive_iff_sUnion_subset

Modification history

2024-11-19 22:02
Mathlib/SetTheory/ZFC/Ordinal.lean
feat(SetTheory/ZFC/Ordinal): Initial development of ordinals in ZFSet (#15793) …
Modified ZFSet.isTransitive_iff_sUnion_subsetView on Github →
2023-05-14 07:05
Mathlib/SetTheory/ZFC/Ordinal.lean
chore: Rename to `sSup`/`iSup` (#3938) …
Added ZFSet.isTransitive_iff_sUnion_subsetView on Github →