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Theorem Set.is_transitive.sUnion

Modification history

2022-07-21 13:52
src/set_theory/zfc/ordinal.lean
feat(set_theory/zfc/ordinal): more lemmas on transitive sets (#15548) …
Deleted Set.is_transitive.sUnionView on Github →
2022-07-20 01:47
src/set_theory/zfc/ordinal.lean
feat(set_theory/zfc/ordinal): transitive sets (#15288) …
Added Set.is_transitive.sUnionView on Github →