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ZFSet.isOrdinal_iff_forall_mem_isTransitive
Modification history
2024-12-15 00:44
Mathlib/SetTheory/ZFC/Ordinal.lean
feat(SetTheory/ZFC/Ordinal): Alternate characterizations of ordinals (#17001) …
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ZFSet.isOrdinal_iff_forall_mem_isTransitive
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