Theorem contractible_iff_id_nullhomotopic

Modification history

2023-08-10 19:52
Mathlib/Topology/Homotopy/Contractible.lean
chore: banish `Type _` and `Sort _` (#6499) …
Modified contractible_iff_id_nullhomotopicView on Github →
2023-05-14 11:05
Mathlib/Topology/Homotopy/Contractible.lean
feat: port Topology.Homotopy.Contractible (#3960)
Added contractible_iff_id_nullhomotopicView on Github →