Mathlib v3 is deprecated. Go to Mathlib v4

Theorem cofinite_topology.is_closed_iff

Modification history

2022-02-14 21:58
src/topology/constructions.lean
refactor(topology/constructions): turn `cofinite_topology` into a type synonym (#11967) …
Added cofinite_topology.is_closed_iffView on Github →