Theorem isOpen_setOf_disjoint_nhds_nhds
Modification history
2025-03-11 15:38
Mathlib/Topology/Constructions.lean
chore(Topology/Constructions): split out results about sums, products and distributivity (#22827) …
Modified isOpen_setOf_disjoint_nhds_nhdsView on Github →2024-01-29 18:36
Mathlib/Topology/Constructions.lean
feat(Topology/Separation): define R₁ spaces, review API (#10085) …
Modified isOpen_setOf_disjoint_nhds_nhdsView on Github →