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Theorem cardinal.mk_set_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) …
Deleted cardinal.mk_set_le_aleph_0View on Github →
2022-06-22 18:31
src/set_theory/cardinal/basic.lean
refactor(data/set/countable): make `set.countable` protected (#14886) …
Modified cardinal.mk_set_le_aleph_0View on Github →
2022-06-05 07:36
src/set_theory/cardinal/basic.lean
refactor(set_theory/*): change `omega` to `aleph_0` + golf (#14467) …
Added cardinal.mk_set_le_aleph_0View on Github →