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Theorem
cardinal.mk_le_aleph_0
Modification history
2022-09-12 11:04
src/set_theory/cardinal/basic.lean
refactor(set_theory/basic): match `x < ℵ₀` lemmas with `x ≤ ℵ₀` lemmas (#15662) …
Modified
cardinal.mk_le_aleph_0
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2022-08-17 00:31
src/set_theory/cardinal/basic.lean
feat(set_theory/cardinal): cardinality of `multiset`, `polynomial` and `mv_polynomial` (#15889) …
Modified
cardinal.mk_le_aleph_0
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2022-06-05 07:36
src/set_theory/cardinal/basic.lean
refactor(set_theory/*): change `omega` to `aleph_0` + golf (#14467) …
Added
cardinal.mk_le_aleph_0
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