Mathlib Changelog
v3
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Mathlib v3 is deprecated.
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Commit
2018-04-16 19:00
b7db5080
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feat(analysis/topology/topological_space): basis elements are open
Estimated changes
Modified
analysis/topology/topological_space.lean
added
theorem
topological_space.is_open_of_is_topological_basis
added
theorem
topological_space.mem_basis_subset_of_mem_open