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Theorem cardinal.countable_iff

Modification history

2021-10-23 14:30
src/set_theory/cardinal.lean
feat(set_theory/cardinal): add `add_le_omega` (#9887) …
Deleted cardinal.countable_iffView on Github →
2021-09-18 02:27
src/set_theory/cardinal.lean
chore(set_theory/cardinal): use notation `#`, add notation `ω` (#9217) …
Modified cardinal.countable_iffView on Github →
2019-05-10 00:53
src/set_theory/cardinal.lean
feat(set_theory): add to cardinal, ordinal, cofinality (#963) …
Added cardinal.countable_iffView on Github →