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Theorem set.subset_iff_inter_eq_self

Modification history

2021-01-27 18:19
src/data/set/basic.lean
refactor(data/set/basic): simpler proofs (#5920) …
Deleted set.subset_iff_inter_eq_selfView on Github →
2020-12-15 22:23
src/data/set/basic.lean
feat(topology/separation): add lemma connected_component_eq_clopen_Inter (#5335) …
Added set.subset_iff_inter_eq_selfView on Github →