Theorem ZFSet.IsOrdinal.not_mem_iff_subset

Modification history

2025-05-25 12:30
Mathlib/SetTheory/ZFC/Ordinal.lean
chore(*): not_mem/nmem -> notMem (#25159)
Deleted ZFSet.IsOrdinal.not_mem_iff_subsetView on Github →
2024-12-15 00:44
Mathlib/SetTheory/ZFC/Ordinal.lean
feat(SetTheory/ZFC/Ordinal): Alternate characterizations of ordinals (#17001) …
Added ZFSet.IsOrdinal.not_mem_iff_subsetView on Github →