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Theorem is_closed_bUnion

Modification history

2022-06-02 17:31
src/topology/basic.lean
refactor(data/set/finite): protect `set.finite` (#14344) …
Modified is_closed_bUnionView on Github →
2019-06-03 22:11
src/topology/basic.lean
feat(topology/basic): is_open_Inter and others (#1108)
Added is_closed_bUnionView on Github →