Theorem subsingleton_of_disjoint_isOpen_iUnion_eq_univ

Modification history

2024-07-26 00:02
Mathlib/Topology/Connected/Basic.lean
chore: split `Topology.Connected.Basic` (#15144) …
Modified subsingleton_of_disjoint_isOpen_iUnion_eq_univView on Github →
2023-07-06 15:47
Mathlib/Topology/Connected.lean
feat: in a preconnected space, a (finite) disjoint cover of non-empty open/closed/clopen subsets contains at most one element. (#5677)
Added subsingleton_of_disjoint_isOpen_iUnion_eq_univView on Github →