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Theorem is_open.inter_frontier_eq_empty_of_disjoint

Modification history

2022-06-29 10:03
src/topology/basic.lean
refactor(topology/*): Use `disjoint` (#14950) …
Deleted is_open.inter_frontier_eq_empty_of_disjointView on Github →
2021-03-29 23:43
src/topology/basic.lean
feat(topology/local_homeomorph): add `is_image`, `piecewise`, and `disjoint_union` (#6804) …
Added is_open.inter_frontier_eq_empty_of_disjointView on Github →