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Theorem
cardinal.ord_is_principal_add
Modification history
2022-03-14 07:05
src/set_theory/cardinal_ordinal.lean
refactor(set_theory/cardinal_ordinal): `aleph_is_principal_aleph` → `principal_add_aleph` (#12663) …
Deleted
cardinal.ord_is_principal_add
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2022-03-02 06:23
src/set_theory/cardinal_ordinal.lean
feat(set_theory/principal): prove theorems about additive principal ordinals (#11704)
Added
cardinal.ord_is_principal_add
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