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Theorem
topological_space.opens.subset_coe
Modification history
2023-02-09 19:18
src/topology/sets/opens.lean
refactor(topology/sets/opens): use a `structure` for `opens` and `open_nhds_of` (#18409) …
Deleted
topological_space.opens.subset_coe
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2020-08-12 10:41
src/topology/opens.lean
feat(topology/opens): open_embedding_of_le (#3597) …
Added
topological_space.opens.subset_coe
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