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Theorem set.countable_Union

Modification history

2022-07-23 17:07
src/data/set/countable.lean
refactor(data/set/countable): golf using `_root_.countable`, review API (#15624) …
Modified set.countable_UnionView on Github →
2022-06-22 18:31
src/data/set/countable.lean
refactor(data/set/countable): make `set.countable` protected (#14886) …
Modified set.countable_UnionView on Github →
2017-09-28 18:08
data/set/countable.lean
feat(topology): add Lebesgue measure
Modified set.countable_UnionView on Github →
2017-09-11 11:58
data/set/countable.lean
feat(data/set/countable): finite sets are countable
Added set.countable_UnionView on Github →