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Theorem topological_space.Union_basis_of_is_open

Modification history

2021-04-01 01:24
src/topology/bases.lean
refactor(topology/bases): use `structure` for `is_topological_basis (#6947) …
Deleted topological_space.Union_basis_of_is_openView on Github →
2019-03-03 19:05
src/topology/bases.lean
chore(topology): Splits topology.basic and topology.continuity (#785) …
Modified topological_space.Union_basis_of_is_openView on Github →
2018-05-17 04:23
analysis/topology/topological_space.lean
feat(data/computability): primrec, denumerable
Added topological_space.Union_basis_of_is_openView on Github →