Mathlib v3 is deprecated. Go to Mathlib v4

Theorem is_clopen_iff

Modification history

2021-02-11 09:21
src/topology/connected.lean
refactor(topology/subset_properties.lean): split the subset_properties.lean file (#6161) …
Modified is_clopen_iffView on Github →
2020-02-08 13:25
src/topology/subset_properties.lean
refactor(topology/*): irreducible and connected sets are nonempty (#1964) …
Modified is_clopen_iffView on Github →
2019-03-03 19:05
src/topology/basic.lean
chore(topology): Splits topology.basic and topology.continuity (#785) …
Modified is_clopen_iffView on Github →
2018-11-05 09:01
analysis/topology/topological_space.lean
feat(analysis/topology/topological_space): define T0 spaces, T4 spaces, connected and irreducible sets and components (#448)
Added is_clopen_iffView on Github →